[52] Russian Germanium Transistors

Date: October 28th, 2007 | Comments : [6] | Categories: DIY.

Germaniums from Lithuania

I bought these on Ebay and they were actually shipped from Lithuania. These germanium transistors were supposed to be a replacement for the 2N404 device. I used my Peak Electronics transistor tester on a random selection of parts from the bag and got the following results:

HFE Leakage (uA) Vbe
34 150 0.33
30 150 0.31
47 270 0.31
39 190 0.33
36 170 0.31
29 150 0.31
34 170 0.31
32 150 0.30
46 250 0.35
36 170 0.31

germanium pin configuration

The pins are the common C-B-E configuration. These transistors are not quite as good as the real 2N404A transistors that I have for sale, whose HFEs ran from 50 to 90, but they are consistent in performance, low leakage, and a good value for the money. Note that the metal can is connected to the base lead of the transistor so you have to insulate it from any stray wires or other parts. The black can devices are the same part number, but look to have an insulative coating on the housing.


6 Responses to “Russian Germanium Transistors”

[89] Johann Says: 3:47 am, October 29th, 2007

What will you using them for? Isn’t the gain too low for the average Fuzz Face?

[90] admin Says: 3:25 pm, October 29th, 2007

I just plan on using them for experimentation and bought them because they were a bargain. The gain is good enough for a Rangemaster or similar booster, and might even make a surprisingly good fuzzface.


[91] Johann Says: 1:14 am, October 30th, 2007

Well they certainly look great 🙂

[92] admin Says: 5:50 am, October 30th, 2007

That is a color picture too, not B&W! 🙂

[251] MartyMart Says: 6:06 am, November 27th, 2007

Hi Jack, try to find some GT308’s as I’ve had some great results from these, may even have been the same seller on Ebay !

[616] Alex Says: 2:18 pm, February 25th, 2009

Our Russian is very old transistors and how they are to you?


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