Sold - 2SC459 NPN Vintage Semiconductor Transistors - £0.99 for 10

The 2SC459 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC459
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.2 W
Maximum collector-base voltage |Ucb| - 30 V
Maximum collector-emitter voltage |Uce| - 30 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.1 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 115 MHz
Collector capacitance (Cc) - 4 pF
Forward current transfer ratio (hFE) - min: 60
Noise Figure - TBC dB
Package of 2SC459 transistor - SOT33

2SC459 - used as a high frequency RF amplifier and mixer

The 2SC459 was noted for applications as a high frequency RF amplifier and mixer.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:

09/01/2019 - Now sold

Read More

Sold - 2SC458 Hitachi NPN Vintage Semiconductor Transistors - £0.99 for 10

The 2SC458 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC458
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.2 W
Maximum collector-base voltage |Ucb| - 30 V
Maximum collector-emitter voltage |Uce| - 30 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.1 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 115 MHz
Collector capacitance (Cc) - 4 pF
Forward current transfer ratio (hFE) - min: 60
Noise Figure - TBC dB
Package of 2SC458 transistor - SOT33

You can download the full data sheet here 

For sale - 2SC458 transistor for low frequency low noise amplifiers

The 2SC458 was noted for applications as a low frequency, low noise amplifier, which could be used as a complementary pair with the 2SA1031 and 2SA1032.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:

30/12/16 - Sent 20 to Denmark, plenty of stock left.
06/01/18 - Sent 10 to Dubai, plenty of stock left.
11/01/18 - Stock levels:
Type B - 69
Type (LG) B - 84
Type (LG) C - 78
Type C - 147
Type D - 35
Type 6x - 95
Unsorted - 100s
28/04/20 - All stock sold

Read More

For Sale - 2SC461 Hitachi NPN Vintage Semiconductor Transistors - £0.99 for 10

The 2SC461 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC461
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.2 W
Maximum collector-base voltage |Ucb| - 30 V
Maximum collector-emitter voltage |Uce| - 30 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.1 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 115 MHz
Collector capacitance (Cc) - 3 pF
Forward current transfer ratio (hFE) - min: 35
Noise Figure - TBC dB
Package of 2SC461 transistor - SOT33

You can download the full data sheet here 

Hitachi 2SC461 for sale - a variety of applications

The 2SC461 was used in a variety of applications, but is noted for applications as a very high frequency VHF amplifier or mixer.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

None so far

Read More

For Sale - 2SC535 Hitachi NPN Vintage Semiconductor Transistors - £0.99 for 10

The 2SC535 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC535
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.1 W
Maximum collector-base voltage |Ucb| - 30 V
Maximum collector-emitter voltage |Uce| - 20 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.02 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 350 MHz
Collector capacitance (Cc) - 1.8 pF
Forward current transfer ratio (hFE) - min: 60
Noise Figure - TBC dB
Package of 2SC535 transistor - SOT33

You can download the full data sheet here 

2SC535 - used as VHF amplifier, local oscillator or mixer

The 2SC535 was used in a variety of applications, but is noted for applications as a very high frequency VHF amplifier, local oscillator or mixer.

Supplies are limited, £0.99 for 10.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries. 

 

 

UPDATES:

14/02/20 - 100+ Available

Read More

Sold - 2SC454 NPN Vintage Semiconductor Transistors - £0.99 for 4

The 2SC454 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC454
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.2 W
Maximum collector-base voltage |Ucb| - 30 V
Maximum collector-emitter voltage |Uce| - 30 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.1 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 115 MHz
Collector capacitance (Cc) - 4 pF
Forward current transfer ratio (hFE) - min: 60
Noise Figure - TBC dB
Package of 2SC454 transistor -

2SC454 - noted for application as a high frequency amplifier and mixer

The 2SC454 was used in a variety of applications, but is noted for applications as a high frequency amplifier and mixer.

Supplies are very limited, last remaining stock now £0.99 for 4.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:

25/11/16 - Batch sold, just 4 left in stock now
28/12/17 - Now sold out

Read More

Sold - 2SC536 NPN Vintage Semiconductor Transistors - £0.99 for 10

The 2SC536 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC536
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.2 W
Maximum collector-base voltage |Ucb| - 40 V
Maximum collector-emitter voltage |Uce| - 30 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.1 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 115 MHz
Collector capacitance (Cc) - 6 pF
Forward current transfer ratio (hFE) min - 60
Noise Figure - TBC dB
Package of 2SC536 transistor - TO92

You can download the full data sheet here 

For sale - 2SC536 transistor for use as a low frequency amplifier

The 2SC536 was used in a variety of applications, but is noted for applications as a low frequency and general purpose amplifier.

Supplies are limited, £0.99 for 2.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

14/02/20 - New stock in

20/05/18 - Now sold
04/04/16 - Following a sales enquiry today, here is a quick stock update:

Type Qty.

C536 D-E6 1

C536 D-E8 6

C536 D-E9 1

C536 E6H 7

C536 E7B 13

C536 E7C 2

20/05/18 - Sold out

14/02/20 - New stock in, just 2 items available:

Type Qty.

C536 D-E8 1

C536 E7B 1

 

02/04/23 - Sold out 

Read More

For Sale - 2SC535 Hitachi NPN Vintage Semiconductor Transistors (Orange case, gold legs)

The 2SC535 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC535
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.1 W
Maximum collector-base voltage |Ucb| - 30 V
Maximum collector-emitter voltage |Uce| - 20 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.02 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 350 MHz
Collector capacitance (Cc) - 1.8 pF
Forward current transfer ratio (hFE) - min: 60
Noise Figure - TBC dB
Package of 2SC535 transistor - SOT33

You can download the full data sheet here 

For sale - 2SC535 transistors, for VHF amplifiers, local oscillators or mixers

The 2SC535 was used in a variety of applications, but is noted for applications as a very high frequency VHF amplifier, local oscillator or mixer. This particular model has an orange casing and gold plated legs.

Supplies are very limited, last remaining stock now £0.99 for 5.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

01/06/18 - Current stock: C535 8F - 22    C535 8J - 40
18/02/20 - Current stock: C535 8F - 03    C535 8J - 35

27/01/21 - Current stock: C535 8F - 03    C535 8J - 30

Read More

For Sale - 2SC460 Hitachi NPN Vintage Semiconductor Transistors - £0.99 for 10

The 2SC460 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC460
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.2 W
Maximum collector-base voltage |Ucb| - 30 V
Maximum collector-emitter voltage |Uce| - 30 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.1 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 115 MHz
Collector capacitance (Cc) - 3 pF
Forward current transfer ratio (hFE) -  min: 35
Noise Figure - TBA dB
Package of 2SC460 transistor - SOT33

You can download the full data sheet here 

For sale - 2SC460 transistor for high frequency amplifiers or mixers

The 2SC460 was used in a variety of applications, but is noted for applications as a high frequency amplifier or mixer.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

 

 

UPDATES:

14/02/20 - 100+ Available

Read More

Sold - 2SC711 NPN Vintage Semiconductor Transistors - £0.99 for 2

The 2SC711 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC711
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.2 W
Maximum collector-base voltage |Ucb| - 30 V
Maximum collector-emitter voltage |Uce| - 25 V
Maximum emitter-base voltage |Ueb| - 4 V
Maximum collector current |Ic max| - 0.05 A
Maximum junction temperature (Tj) - 125 °C
Transition frequency (ft) - 75 MHz
Collector capacitance (Cc) - 5 pF
Forward current transfer ratio (hFE) min - 300
Noise Figure -  TBC dB
Package of 2SC711 transistor - TO92

For sale - 2SC711 silicon NPN semiconductor transistor - NOW SOLD OUT

The 2SC711 was used in a variety of applications.

Last remaining stock now £0.99 for the last 2.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:

29/12/14 - Sold Out

Read More

For Sale - 2SC1923 NPN Vintage Semiconductor Transistor - £0.99

The 2SC1923 is a Silicon NPN Semiconductor Transistor, its specifications are as follows:

Type Designator - 2SC1923
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.1 W
Maximum collector-base voltage |Ucb| - 40 V
Maximum collector-emitter voltage |Uce| - 30 V
Maximum emitter-base voltage |Ueb| - 4 V
Maximum collector current |Ic max| - 0.02 A
Maximum junction temperature (Tj) - 125  °C
Transition frequency (ft) - 275 MHz
Collector capacitance (Cc) - TBC pF
Forward current transfer ratio (hFE) - 40 min
Noise Figure - TBC dB
Package of 2SC1923 transistor - TO92

You can download the full data sheet here

For sale - 2SC1923 transistor, used for audio and radio applications

The 2SC1923 was used in a variety of audio applications, of particular note is its use for in;

High frequency; FM, RF, MIX and IF amplifier applications.

Last remaining stock now £0.99 for the last one.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.
 

 

UPDATES:

None so far

Read More

Sold - 2SC1312 NPN Vintage Semiconductor Transistors - £0.99 for 4

The 2SC1312 is an NPN Silicon Semiconductor, its specifications are as follows:

Type Designator - 2SC1312
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) - 0.2 W
Maximum collector-base voltage |Ucb| - 35V
Maximum collector-emitter voltage |Uce| - 35 V
Maximum emitter-base voltage |Ueb| - 5 V
Maximum collector current |Ic max| - 0.1 A
Maximum junction temperature (Tj) - 150 °C
Transition frequency (ft) - 200 MHz
Collector capacitance (Cc) - TBC pF
Forward current transfer ratio (hFE) - 150 min
Noise Figure, dB -
Package of 2SC1312 transistor - TO92

2SC1312 - noted for its use as a low frequency amplifier

The 2SC1312 was used in a variety of applications, of particular note is its use as a low frequency amplifier.

Last remaining stock now £0.99 for the last 4.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:

19/04/16 - Sold out

Read More

For Sale - 2SC2320 NPN Vintage Semiconductor Transistors - £0.99 for 10

The 2SC2320 is an NPN Silicon Semiconductor, its specifications are as follows:

TransistorType Designator - 2SC2320
Material of transistor - Si
Polarity - NPN
Maximum collector power dissipation (Pc) -  0.3W
Maximum collector-base voltage |Ucb| - 50 V
Maximum collector-emitter voltage |Uce| - 50V
Maximum emitter-base voltage |Ueb| - 6 V
Maximum collector current |Ic max| - 0.2 A
Maximum junction temperature (Tj) - 175 °C
Transition frequency (ft) - 100 MHz
Collector capacitance (Cc) - 3.5 pF
Forward current transfer ratio (hFE) - 90 min
Noise Figure, dB -
Package of 2SC2320 transistor - TO92

You can download the full data sheet here

For sale - 2SC2320 transistors for a variety of audio applications

The 2SC2320 was used in a variety of audio applications, of particular note is its use in audio circuits.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.
 

 
UPDATES:

01/07/17 - Only 2 items left
14/02/20 - New stock arrived
27/02/20 - 145 available

Read More

Transistors - Introduction

So today marks the start of my transistor listings and there are quite a few to go, nothing exotic, just a lot of audio, rf and switching transistors to come over the next couple of weeks.

In the unlikely event that you don't know what a transistor is, here's what Wikipedia has to say about them:

A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.
The transistor is the fundamental building block of modern electronic devices, and is ubiquitous in modern electronic systems. Following its development in the early 1950s, the transistor revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things.

Read More

For Sale - 1S-188AM Sanyo Vintage Germanium Diodes - £0.99 for 10

The 1S188AM is a fast switching Germanium diode equivalent to the NTE109, its specifications are as follows:

Semiconductor material -Germanium
Forward voltage drop (Vf) - 1 V
Max Forward Currrent (Ifm) - 60 mA
Peak Inverse Voltage (PIV) - 80V
Leakage Current - 100 µA
Junction capacitance - TBC
Power Dissipation - 80 mW
Package type - TBC

For sale germanium diodes - made by Sanyo

The 1S-188AM is a high conductance device with good switching characteristics for low impedance circuits, high resistance-high conductance for efficient coupling, clamping or matrix service and forward / inverse pulse recovery for critical pulse applications.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:

27/07/13 - I was recently asked about stock levels for this item, at this point in time there are 400 left. 29/07/13 - Another batch sold today, plenty still left.
30/03/17 - 390 left.
20/12/19 - Another batch sold today, 210 left.

Read More

Sold - 1N60 Vintage Germanium Diodes - £0.99 for 10

There are a number of manufacturers who have made a 1N60 diode, from my research I have identified these as Germanium diodes with the following specifications:

Semiconductor material -Germanium
Forward voltage drop (Vf) - 1 V
Max Forward Currrent (Ifm) - 500 mA
Peak Inverse Voltage (PIV) - 50V
Leakage Current - 40 µA
Junction capacitance - TBC
Power Dissipation - 80 mW
Package type - Axial-B Glass Encapsulated

You can download the full data sheet here

1N60 Germanium Diodes - stock sold out in 2 days

The 1N60 has a low forward voltage drop, low power consumption and a very low noise level.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

See and hear the 1N60 in action as used in the Pigtronix Philosopher's Tone effects pedal...

UPDATES:

22/07/13 - A quick update to let you know that all stock of the 1N60 type has now gone, thanks Chris and good luck with the crystal radios.

Read More

For Sale - 1S34 Vintage Germanium Diodes - £0.99 for 10

The 1S34 is a general purpose Germanium diode, its specifications are as follows:

Semiconductor material - Germanium
Forward voltage drop (Vf) - 1 V
Max Forward Currrent (Ifm) - 300 mA
Peak Inverse Voltage (PIV) - 75V
Leakage Current - TBC
Junction capacitance - TBC
Power Dissipation - TBC
Package type - DO-7

For sale 1S34 - a general purpose Germanium diode

The 1S34 could be used in a variety of applications in radio circuits, solar power generation projects or for that special Germanium sound in overdrive and fuzz pedals.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

14/03/19 - 20+ left in stock
16/09/19 - All stock now sold
14/02/19 - New stock in, require sorting, watch this space.
10/03/20 - 100+ in stock

Read More

Germanium Diodes - Introduction

In my limited knowledge I thought that Germanium diodes were only of interest to an elite of electronic hackers wanting to rebuild, or recreate the sound of sought after "boutique" 1960s guitar effects pedals.
But on researching the topic further it turns out there are actually quite a few niche uses for this type of semiconductor diode:
They are ideal for building crystal radio radio sets.
They are perfect for high efficiency rectifiers and voltage regulators used in wind or water powered generators.

Here's what Sound on sound had to say about the history of Germanium based electronics:

Active electronics relied exclusively upon the thermionic 'valve' or vacuum 'tube' since its invention by Lee de Forest in 1906. However, by the 1950s the science of semiconductor materials had advanced to the point where it was possible to make bipolar junction transistors — and compact solid-state electronics became a reality. The first devices employed Germanium as the semiconductor and these were widely used for more than 10 years. However, silicon was found to be better in virtually all aspects. It was also ultimately much cheaper, and so silicon transistors gradually replaced germanium through the 1960s, until silicon was ubiquitous in virtually all applications by the mid-1970s.

Germanium devices are now largely relegated to optical applications, because of their inherent sensitivity to the infrared end of the light spectrum. So you'll find them in things like fibre-optic interfaces and night-vision equipment. However, there remains a small market for germanium transistors and some are still being made.

Compared with silicon devices, germanium transistors generally have lower gain, with much less consistency between devices. The gain is also more dependent on collector current and ambient temperature than silicon devices. In practice, that means that a lot of germanium-based electronics had a nasty habit of not working when they got hot! However, germanium transistors were able to operate at higher speeds and slew-rates than early silicon devices — an important consideration in the 1960s but largely irrelevant now.

At a technical level, the base-emitter voltage (Vbe) — the control voltage, if you like — for germanium devices is half that of silicon (300mV instead of 600mV) and that means that you can't just substitute silicon for germanium (or vice versa) without also completely re-engineering the biasing arrangements.

Despite the universality of silicon these days, the 'germanium period' coincided largely with a rapid growth of the music industry, and many people still associate classic sounds with germanium-based products like EMI's first solid-state TG mixers, Neve's 1053 and contemporary modules, and some of the vintage Fairchild and Telefunken products. Similarly, many of the classic guitarist stomp boxes that date from the 1950s and 1960s also employed germanium devices.

Diodes - currently under examination

Read More

For Sale - RD75EB2 Vintage Zener Diodes - £0.99 for 10

The RD75EB2 is a zener diode, its specifications are as follows:

Semiconductor material - Silicon
Zener voltage (Vz) - 7.11 - 7.41 V
Zener currrent (Iz) - 20 mA
Dynamic Impedance (Z) - 8 Ω
Reverse Current - 0.5 µA
Package type - Axial

You can download the full data sheet here

For sale - RD75EB2 Zener diodes for regulated power supplies - £0.99 for 10

The RD75EB2 is of particular note for its use in regulated power supplies.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

 

 

UPDATES:

None so far

Read More

For Sale - HV-80 Crown Vintage Reference Regulator Diodes - £0.99 for 10

The HV-80 is a regulator diode, its specifications are as follows:

Semiconductor material - Silicon
Zener voltage (Vz) - 10.0 V
Zener currrent (Iz) - 50 mA
Forward Voltage (Vf) - 0.55 - 0.75 V
Dynamic Impedance (Z) - 7 Ω
Reverse Current - 3 mA
Package type -DO-35

For sale HV-80 - for use in regulated power supplies

The HV-80 is of particular note for its use in regulated power supplies.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

14/02/20 - 100+ Available

Read More

For Sale - 1R10 / NTE140A Vintage Zener Diodes - £0.99 for 10

The 1R10 is a zener diode, its specifications are as follows:

Semiconductor material - Silicon
Zener voltage (Vz) - 10.0 V
Zener currrent (Iz) - 25 mA
Dynamic Impedance (Z) - 7 Ω
Reverse Current - 10 µA
Package type - Axial

1R10 Zener diode - noted for use in regulated power supplies

The 1R10 is of particular note for its use in regulated power supplies.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

06/03/20 - 50+ in stock

Read More

Zener Diodes - Introduction

If you have found this page I would be surprised if you didn't know what a Zener Diode is, but just to be on the safe side here is a recap courtesy of Wikipedia:

A Zener diode is a diode which allows current to flow in the forward direction in the same manner as an ideal diode, but will also permit it to flow in the reverse direction when the voltage is above a certain value known as the breakdown voltage, "zener knee voltage", "zener voltage" or "avalanche point".
The device was named after Clarence Zener, who discovered this electrical property. Many diodes described as "zener" diodes rely instead on avalanche breakdown as the mechanism. Both types are used. Common applications include providing a reference voltage for voltage regulators, or to protect other semiconductor devices from momentary voltage pulses.

A conventional solid-state diode will allow significant current if it is reverse-biased above its reverse breakdown voltage. When the reverse bias breakdown voltage is exceeded, a conventional diode is subject to high current due to avalanche breakdown. Unless this current is limited by circuitry, the diode will be permanently damaged due to overheating. A zener diode exhibits almost the same properties, except the device is specially designed so as to have a reduced breakdown voltage, the so-called zener voltage. By contrast with the conventional device, a reverse-biased zener diode will exhibit a controlled breakdown and allow the current to keep the voltage across the zener diode close to the zener breakdown voltage. For example, a diode with a zener breakdown voltage of 3.2 V will exhibit a voltage drop of very nearly 3.2 V across a wide range of reverse currents. The zener diode is therefore ideal for applications such as the generation of a reference voltage (e.g. for an amplifier stage), or as a voltage stabilizer for low-current applications.^[1]

You can read even more fascinating facts about Zener diodes here and if you need to buy some vintage zener diodes, you've come to the right place as I will be listing some tomorrow.

Read More

For Sale - 1SV56 Vintage Varicap Diodes - £0.99 for 2

The 1SV56 is a varicap diode, its specifications are as follows:

Military/High-Rel - N
Ct{Cj} Nom. (F) Junction Cap. - 42p
C1/C2 Min. Capacitance Ratio
V(RRM)(V) Rep.Pk.Rev. Voltage - 32
Q Factor Min. - 100
f(co) Min. (Hz) Cut-off freq. - 10G
P(D) Max. (W) - 280m
Semiconductor Material - Silicon
Package Style - TO-92
Mounting Style - T

For sale - 1SV55 varactor diodes - £0.99 for 2

The 1SV56 was used in a variety of audio applications, of particular note is its use for the AFC circuit in radio receivers.

Last remaining stock now £0.99 for the last 2.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.
 

 
UPDATES:

18/07/20 - 2 items remaining

Read More

For Sale - 1S85 Vintage Varicap Diodes - £0.99 for 10

The 1S85 is a varicap diode, its specifications are as follows:

Semiconductor material - Silicon
Forward voltage drop (Vf) - 0.9 V
Max Forward Currrent (Ifm)- 50 mA
Peak Inverse Voltage (PIV) - 20 V
Leakage Current - 5 µA
Junction capacitance - 14-26 pF
Power Dissipation - TBC
Package type -Axial Glass

For sale - 1S85 vintage varicap diodes - £0.99 for 10

The 1S85 was used in a variety of radio applications, of particular note is its use in simple valve radio tuning circuits. It is equivalent to the BA101 diode.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

30/03/17 - 150 left in stock

Read More

Varicaps - Introduction

Amongst my stock of vintage diodes are some varicaps, Wikipedia tells us the following about them:

In electronics, a varicap diode, varactor diode, variable capacitance diode, variable reactance diode or tuning diode is a type of diode whose capacitance varies as a function of the voltage applied across its terminals.

Varactors are used as voltage-controlled capacitors. They are commonly used in voltage-controlled oscillators, parametric amplifiers, and frequency multipiers. Voltage-controlled oscillators have many applications such as frequency modulation for FM transmitters and phase-locked loops. Phase-locked loops are used for the frequency synthesizers that tune many radios, television sets, and cellular telephones.

Varactors are operated in a reverse-biased state. No current flows, but since the thickness of the depletion zone varies with the applied bias voltage, the capacitance of the diode can be made to vary. Generally, the depletion region thickness is proportional to the square root of the applied voltage; capacitance is inversely proportional to the depletion region thickness. Thus, the capacitance is inversely proportional to the square root of applied voltage.

All diodes exhibit this phenomenon to some degree, but varactor diodes are manufactured specifically to exploit this effect and increase the capacitance (and thus the range of variability), whereas most ordinary diode fabrication strives to minimize the capacitance.

So there you have it, watch this space, the varicaps are coming!

Read More

Sold Out - V06B Hitachi Vintage Silicon Diodes - £0.99 for 10

The V06B by Hitachi is a general purpose diode, its specifications are as follows:

Semiconductor material - Silicon
Forward voltage drop (Vf) - 1.4 V
Max Forward Currrent (Ifm) - 1.1 A
Peak Inverse Voltage (PIV) - 100V
Leakage Current - TBC
Junction capacitance - TBC
Power Dissipation - TBC
Package type - Axial-B Glass Encapsulated

V06B - general purpose diode

The V06B was used in a variety of audio applications, of particular note is its use for  power rectification and regulation in audio amplifiers.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:
 
20/09/13 - I was recently asked about stock levels for this item, at this point in time there is a single batch of 50 left.
28/09/13 - All current stock sold out.

Read More

For Sale - WG-713 / 1N4148 Crown Vintage Silicon Diodes - £0.99 for 10

The WG-713 by Crown is a general purpose diode, its specifications are as follows:

Semiconductor material - Silicon
Forward voltage drop (Vf) - 1 V
Max Forward Currrent (Ifm) - 100 mA
Peak Inverse Voltage (PIV) - 35V
Reverse Current - 100 nA
Junction capacitance - TBC
Power Dissipation - TBC
Package type - DO-35

WG-713 - for power rectification and regulation in audio amplifiers

The WG-713 was used in a variety of audio applications, of particular note is its use for  power rectification and regulation in audio amplifiers. It is the equivalent of the 1N4148 diode.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries. 

 

 

UPDATES

21/10/13 - This post is getting a huge amount of traffic, I was recently asked about stock levels for this item, at this point in time there is a single batch of 100 left.
14/02/20 - Still around 100 in stock

Read More

Sold - 1S2688 - 8 Crown Vintage Silicon Diodes - £0.99 for 6

The 1S2688 is a diode, its specifications are as follows:

Semiconductor material - Silicon
Forward voltage drop (Vf) -TBC
Max Forward Currrent (Ifm) - TBC
Peak Inverse Voltage (PIV) - 20V
Leakage Current - TBC
Junction capacitance - 2.2 pF
Power Dissipation - TBC
Package type - TBC

For sale - 1S2688 diode used in radio tuning circuits

The 1S2688 was used in a variety of audio applications, of particular note is its use in the AFC section of radio tuning circuits.

Get the last remaining 6 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:

29/12/15 - Now sold

Read More

Sold - V06C Hitachi Vintage Silicon Diodes - £0.99 for 8

The V06C by Hitachi is a general purpose diode, its specifications are as follows:

Semiconductor material - Silicon
Forward voltage drop (Vf) - 1.4 V
Max Forward Currrent (Ifm) - 1.1 A
Peak Inverse Voltage (PIV) - 300V
Leakage Current - 20 µA
Junction capacitance - TBC
Power Dissipation - TBC
Package type - Axial-B Glass Encapsulated

You can download the full data sheet here

V06C - for  power rectification and regulation in audio amplifiers.

The V06C was used in a variety of audio applications, of particular note is its use for power rectification and regulation in audio amplifiers.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

14/06/15 - All current stock sold out.
14/02/20 - New stock in.
25/02/20 - 28 available.

27/01/21 - 8 available.

15/05/21 - Sold out

Read More

For Sale - 1S2473 Crown Vintage Silicon Diodes - £0.99 for 10

The 1S2473 is a switching diode, its specifications are as follows:

Semiconductor material - Silicon
Forward voltage drop (Vf) - 1.2V
Max Forward Currrent (Ifm)- 100 mA
Peak Inverse Voltage (PIV) - 35V
Leakage Current- TBC
Junction capacitance - 3 pF
Power Dissipation - 300 mW
Package type - TBC

You can download the full data sheets here

The 1S2473 diode - used in audio applications, such as the Boss OD-1

The 1S2473 was used in a variety of audio applications, of particular note is its use in guitar effects pedals to simulate the sound of over driven valve amplifiers, such as the classic Boss OD-1 "stomp boxes" read more about Boss pedals here

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.
 

 
UPDATES:
 
27/07/13 - I was recently asked about stock levels for this item, at this point in time there are 394 left.
29/07/13 - A batch of 100+ sold today, stocks still good.
10/08/13 - 10 more in the post, still over 200 left.
19/08/13 - Another 50 to go in the post today, but still over 150 left.
20/08/13 - 20 more gone.
24/08/13 - Another 100 to go in the post today, down to under 50 left in stock, be quick!
12/11/13 - 10 more in the post to Scotland.
15/11/13 - 10 more ready to go to the USA.
16/11/13 - 20 prepared to go to France.
17/11/13 - Did a quick head count approx. just 30 left now.
27/11/13 - There could be issues with USA delivery - items missing in the post.
03/12/13 - 2nd USA batch sent out to replace those lost in the post.
13/12/13 - The date might be unlucky for some, but not for me 2nd USA batch arrived, yay!.
23/12/13 - Any surplus remaining stock sold to a Canadian buyer
26/12/13 - A further 20 sold to a buyer in Wales
14/02/20 - New stock arrived, over 100+ available.

Read More

Sold - V03C Hitachi Vintage Silicon Diodes - £0.99 for 8

The V03C by Hitachi is a general purpose diode, its specifications are as follows:

Semiconductor material - Silicon
Forward voltage drop (Vf) -1.1 V
Max Forward Currrent (Ifm) - 1.3 A
Peak Inverse Voltage (PIV) - 300V
Leakage Current - TBC
Junction capacitance - TBC
Power Dissipation - TBC
Package type - Axial-B Glass Encapsulated

You can download the full data sheet here

V03C - for  power rectification and regulation in audio amplifiers

The V03C was used in a variety of audio applications, of particular note is its use for power rectification and regulation in audio amplifiers.

Get yours now, whilst stocks last, 10 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.

UPDATES:

01/01/17 - 26 items in stock
07/09/17 - 16 items in stock
14/02/20 - New stock arrived
23/02/20 - 38 items in stock
06/03/20 - 28 items in stock

27/01/21 - 8 items in stock

15/10/21 - Sold out

Read More

Sold - 10E1 Crown Vintage Silicon Diodes - £0.99 for 6

The 10E1 by Crown is a general purpose diode, its specifications are as follows:

Semiconductor material - Silicon
Forward voltage drop (Vfm) - 0.9 V
Max Forward Currrent (Ifm) - 1.57 A
Peak Inverse Voltage (PIV) - 250V
Peak Reverse Current - 50 µA
Junction capacitance - TBC
Power Dissipation - TBC
Package type - Axial-B Glass Encapsulated

For sale - 10E1 diode as used in a variety of audio amplifiers

The 10E1 was used in a variety of audio applications, of particular note is its use for  power rectification and regulation in audio amplifiers.

Get yours now, whilst stocks last, 6 for just 99p.

Delivery within the UK is £2.99, I can send to Europe and Worldwide too; but please ask for a quote first, as rates vary greatly between countries and are prone to rapid price fluctuations. Items will be sent in a padded "Jiffy Bag" type envelope to ensure safe delivery.

Send a message or leave a comment if you have any enquiries.


UPDATES:

01/02/16 - Sold Out

Read More