Early 2N2146 [ahh NOPE that's 2N4126] pnp, 1000s of the things... what to do?

[peteb2]

2N2146.... So i've ended up with around 5000++ 2N4126 T0-92 that've been stored in a burst baggy meaning their legs are a bit dirty needing a simple quick scrape prior to soldering etc....

Ridiculous issue is that even though i've tried to pass out handfuls of the things free, everyone says; "oh pity they're pnp, there aint much yuh can do with 'em, no thanks"...

So, here's a challenge: What's a circuit that'll consume as many as possible of the dang things as possible please? It just seems a terrible waste to just chuck them. They are annoyingly taking up valuable storage space though...

[AngusBeef]

 

https://hackaday.com/2016/07/06/42300-transistor-megaprocessor-is-complete/

[bob91343]

I am in a similar boat with 1N4148 diodes.  I must have thousands of them.

Rated 1 A and 100 V, fairly fast.

I also have bags of resistors that aren't what the color code indicates.  Whether they are mislabeled or have drifted I don't know.

[edavid]

I don't think you mean 2N2146... that's a TO-3 transistor, so 5000 of them would require a really large bag.

[james_s]

Should be able to build just about anything you can build with NPN with PNP. If you have thousands of them it sounds like a discrete digital clock might be a good one.

[tautech]

Drop by for a coffee sometime Pete and I'll take a few hundred off you to spread around between mates.
Maybe I can swap for a few things I have 1000's of ?
Nuthing exciting only passives. 

[peteb2]

Should be able to build just about anything you can build with NPN with PNP. If you have thousands of them it sounds like a discrete digital clock might be a good one.

....ooops massive dyslexia on the keyboard!!! What a clutz!!!  (suitable edit done to my OP)....

[edavid]

I am in a similar boat with 1N4148 diodes.  I must have thousands of them.

Rated 1 A and 100 V, fairly fast.

Just so no one injures themselves, the actual spec is 75V, 200mA.  Don't try to put 1A through a 1N4148.

[Conrad Hoffman]

Don't know how quiet they are. Maybe you could do a massively paralleled amplifier front end for low noise? Almost anything you can do with an NPN, you can do with a PNP.

[tautech]

https://www.nteinc.com/specs/original/2N4125_26.pdf

[amyk]

Early DTL/RTL logic used exclusively PNP (and Germanium) transistors, 5000 is probably enough to build a simple 8-bit CPU.