GT311B

[ambulancevoice]

im getting some of these soon, and i tried googling them but nothing
so does anyone have any info on them??? there germanium russian npn

[$uperpuma]

these russian trannies have been good to me, I've got the 312's and 313's (thanks to Dano Beavis)

[ambulancevoice]

thats good to hear
do they have something that denotes the emitter or collecter???

[skiraly017]

Have a pic? I can label it for you.

[anchovie]

I've got some GT311J which I'm very happy with.

Looking at the underside, the pinout is:-


          . B

          . C          . case

          . E

[ambulancevoice]

not yet, i havnt got them yet
the only pic i could find was this

they are those ufo metal cases

i think i can see i little tab (possibly denoting the emitter??? like they usually do) on one of them

yeah, i think it is B C E
im not sure if it has that case pin, cause i cant see any
ive heard if you touch those pins it reduces noise or something???

[anchovie]

There's no tab on mine. I can confirm the pinout as I've used them in a Tonebender build. Yours will be identical to mine physically, they will just have a different specified range for hfe. There's an internal shunt resistor in the can that makes the hfe measurements on my DMM incorrect (too low) so I've been selecting by using sockets and my ears! Connect the case pin to ground for noise reduction.

[ambulancevoice]

ok, i won the auction, and there on there way

thanks for the info

[DDD]

Good trannies (ГТ311В or ГТ311Б). But be careful when soldering, they don't like overheating.

[ambulancevoice]

dont worry, i use an alligator clip as a heat sink when i solder transistors