HIYAT (Help Identifying Yet Another Transisitor)

[CodeMonk]

Yes another one (I have asked this question for other parts before).

My favorite electronics supply store has boatloads of NOS stuff. They list their stock as being NOS (about 95% would qualify as true NOS the rest would be NNS (New New Stock?) ).
http://www.apexelectronic.com/index.htm

I get all kinds of good stuff there.
Now and then I get some transistors that I have no idea what types they are. So far I have done pretty good. Only 1 boo-boo pick out of all the parts I have gotten there.
Its not exactly your run-of-the-mill electronics supply store.
Prices really kick ass there.
For instance sometime last year I bought about 200 2N2222 transistors. Paid around $10.
Anyway sometimes I get stuff cause the part number may look similar to something I know to be good for stompboxes.
Yeah I know not the best way to shop but at their prices its really hard to end up with the short end of the stick.

But a few times I have gotten some stuff I can't easily identify or can't find much info on.
Sometimes these oddballs just end up mixed in with other parts I buy.

Picture below of my latest "What the F*** is this thing".



What info I have been able to obtain:
Obviously Motorola
PNP
According to my meter, hFE mostly runs between 130 and 136 (I have 15 of these) with a 97, 114, and a 142 reading on 3 of them. The rest are tightly between the 130 and 136 range.

Any ideas?


Thanks

[R.G.]

PNP
According to my meter, hFE mostly runs between 130 and 136 (I have 15 of these) with a 97, 114, and a 142 reading on 3 of them. The rest are tightly between the 130 and 136 range.

Any ideas?

You'll want to find out if it's silicon or germanium. Find which way one of the junctions conduct, put a resistor and battery across it to make it conduct, then measure the junction forward voltage. Under 0.4v, it's germanium. Over, it's silicon.

Chances of finding out what type number it is are very slim. The makers used to stamp them whatever number a buyer wanted if they buyer bought enough of them.

Use it with what you can confirm about it: gain, material, possibly breakover voltage, and polarity. Don't sweat what it would have been called if they'd called something other than what's stamped on the can in ink.

[CodeMonk]

Great info there.

Thanks RG.