Help with strange Transistors

Started by Austin73, January 17, 2008, 10:23:50 AM

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Austin73

After my freecycle exploits detailed in another thread - I went thru the bag of bits but wanted some help with the following

BFX88 - Metal can - I presume the are good low hfe npn so thinking fuzz face or similar

AU113 - Massive transistor but only have 2 pins and mounting lugs on each side - I tried looking it up but I get pnp germanium but not sure it looks too big

TIP31A - No idea what it is or what for

C1061 - Again no idea and they also have some different numbers on each one eg C1061 5C3, C1061 415 C1061 4M4

ALSO got some very strange looking silicon diode that look like axial metal can transistors if that makes sense, which just say RS 50A

Any help with these would be great not too bothered if i can't use most of it as it was free and stil got some good stuff.

Cheers as always

Aus
Bazz Fuss, Red LLama, Harmonic Jerkulator, LoFo MoFo, NPN Boost, Bronx Cheer, AB Box, Dual Loop, Crash Sync

Andre

C1061 probably is a  2SC1061. Datasheet here: http://www.ortodoxism.ro/datasheets/mospec/2SC1061.pdf

The rest of the mentioned parts' datasheets except for RS 50A maybe can be easily found by Google.

André



Gus

Did you try google or ASK or.........

Dragonfly

Quote from: Austin73 on January 17, 2008, 10:23:50 AM
After my freecycle exploits detailed in another thread - I went thru the bag of bits but wanted some help with the following

BFX88 - Metal can - I presume the are good low hfe npn so thinking fuzz face or similar

AU113 - Massive transistor but only have 2 pins and mounting lugs on each side - I tried looking it up but I get pnp germanium but not sure it looks too big

TIP31A - No idea what it is or what for

C1061 - Again no idea and they also have some different numbers on each one eg C1061 5C3, C1061 415 C1061 4M4

ALSO got some very strange looking silicon diode that look like axial metal can transistors if that makes sense, which just say RS 50A

Any help with these would be great not too bothered if i can't use most of it as it was free and stil got some good stuff.

Cheers as always

Aus

Oh, the "magic" of taking a few seconds and using Google.
The first two links (TIP31A, BFX88) were the FIRST ones listed in search results...the last link (AU113) was the FIFTH reuslt listed.
Google, my friend...Google.  ;)

http://www.datasheetcatalog.com/datasheets_pdf/T/I/P/3/TIP31A.shtml
http://www.datasheetcatalog.com/datasheets_pdf/B/F/X/8/BFX88.shtml
http://www.datasheetarchive.com/AU113-datasheet.html

Austin73

Thanks for the input chaps. Don't beat down on me please I did look via google and did find the same as you but like I said about the AU113, its huge not like a normal GE PNP and it only has 2 pins

I got the BFX88 data sheet hence the low gain 40hfe and above npn

but the others I couldn't work out what they are, I'm sorry I'm not a electronics genius like the big boys thats why I posted. I just wanted to know WITH your experience if I could use them in any circuits or projects.

The diodes I described I thought you'd be interested in as I have never seen anything like them and I will put them in a fuzz and let you know how I get on.

Cheers anyway

Aus (semi noob still!)
Bazz Fuss, Red LLama, Harmonic Jerkulator, LoFo MoFo, NPN Boost, Bronx Cheer, AB Box, Dual Loop, Crash Sync

Dragonfly

Quote from: Austin73 on January 17, 2008, 03:04:26 PM
Thanks for the input chaps. Don't beat down on me please I did look via google and did find the same as you but like I said about the AU113, its huge not like a normal GE PNP and it only has 2 pins

I got the BFX88 data sheet hence the low gain 40hfe and above npn

but the others I couldn't work out what they are, I'm sorry I'm not a electronics genius like the big boys thats why I posted. I just wanted to know WITH your experience if I could use them in any circuits or projects.

The diodes I described I thought you'd be interested in as I have never seen anything like them and I will put them in a fuzz and let you know how I get on.

Cheers anyway

Aus (semi noob still!)


I don't think that anyone is "beating you down"...it would have been nice if you had posted your links to the datasheets so that A) it would have shown that you had tried to look them up, and B) we wouldn't have to spend time searching...which leads us to the question....

with the limited information that we have about these parts, what can we do with them ? To be honest, the BFX88 might be useful....test the individual gain of each transistor and go from there. The TIP31A and C1061...might also be useful...what I might do is build a simple "test circuit" (LPB or FF maybe) with sockets for the transistors so that you can find out if they work effectively, and hear how they sound.

:) ;)

Austin73

thanks for getting back to me. I know the information I gave you was sketchy at best.

Looking at the data sheet and then checking the BFX88 I'm having a few problems trying to work out if they are npn or pnp but will bang them in a Bazz Fuss by the end of the week and report back. Will also add the strange diodes via a switch to see if they are fun too.

The other transistors have heat sink mount holes on them so not sure if I could use them in a fuzz they look a bit like the voltage regulators you get 7805 etc.

Will post a pic of the AU113 When I get chance , maybe I could use it like the GE transistor in the Skyripper seeing as it has only 2 pins.

Anyway cheers for getting back to me and I promise I'll try harder! lol

Hopefully post by end of the week

Cheers

AUS
Bazz Fuss, Red LLama, Harmonic Jerkulator, LoFo MoFo, NPN Boost, Bronx Cheer, AB Box, Dual Loop, Crash Sync

ambulancevoice

the au11frsdfsd whatever sounds  to me like its in a TO-3 metal can case, the two pins are usually base and emitter, and the case itself is usually collector, the mounting part are for the transistor to be mounted on a heatsink (electrically insulated from it too)
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Austin73

Hey alex thats pretty much a spot on description of it just wondering what the HELL I do with it lol

Any ideas?

Aus
Bazz Fuss, Red LLama, Harmonic Jerkulator, LoFo MoFo, NPN Boost, Bronx Cheer, AB Box, Dual Loop, Crash Sync

ambulancevoice

well, they have a hfe of something to 80 max
so they would make a good candidate for q1 of a fuzz face, or the transistor in a low gain transistors germanium fuzz
to bad there pnp, but still, they can be mounted on a heat sink so temperature instability most likely wont be a problem :D
can we get some pictures maybe? i want to make sure its a TO-3 case
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earthtonesaudio

The big one with the two leads sounds like a power transistor.  Don't know if that helps, but you could probably feed it some huge currents.

ambulancevoice

Quote from: earthtonesaudio on January 18, 2008, 09:25:16 PM
The big one with the two leads sounds like a power transistor.  Don't know if that helps, but you could probably feed it some huge currents.

yeah it is
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