Another noob part related question! BC 329 PNP BC 372 PNP

[krispn]

I took a punt on a mixed lot of components from ebay and they have arrived! Yippee - next follows the task of trying to figure out all the parts which I see as being a nice way to kill a day off matching up coloured lines on very tiny bits!

I did get quite a few transistors usign these or similar marking BC 329  BC 372

Any ideas what they will work well in? Fuzz pedals etc. I ask this question while Im at the very start of a process of discovering the potential of all these components and Im happy to do the leg work, figure out the resistance, capacitance etc of the parts on my own but if I could be steered towards some pedal builds using those transistors I'd be very grateful.

My trusty Electronis For Dummies is eye-balling me so it time to get to work!

Thanks in advance of your advice, help and derision 

[petemoore]

  The easiest way to see a readout of Si or Ge diode is with a DMM diode checker is to take an example, be it a lone diode or the B/E junction of a known [si or ge?] transistor, measure the foreward voltage of the component you have data sheet for.
  You can look online, Ge has lower threshold voltage than Si, .6v and 1.4v respectively IIRC. Close enough to get the Ge sorted out from the Si.
  Then turn the DMM to Hfe, and stick the transistor in the holes the correct way [data sheet] or for unknown pinouts, that's why there are 4 holes BEBC for PNP, and four holes for NPN, stuff the 3 pins in 3 or the the eight holes the most logical way [data sheet] until the readout is a 'reasonable' Hfe measurement for that transistor.
  The BC's, IIRC and don't rely on that, are something around ballpark of 200Hfe - 500Hfe, if a number of similar potential pops up in the screen you've got the pinout marked correctly on the meter panel, [make sketch/note of transistor/pinout] and this is in the form of Hfe reading which is actually Hfe + Leakage.
  For Si type transistors the leakage can be assumed as more consistant and probably low enough that if low noise is issue you get a LN type, say 2n5088.
  If say the Ge transistor is able to register a ballpark Hfe in the PNP side of the DMM socket, the pinout is marked correctly but the Hfe is actually Hfe + Leakage, for use in effects this matters, GEO link Technology of the Fuzzface, how to choose Ge transistors for effects, explains how to subtract the measured leakage to get usefulness in effects = Hfe actual gain readout.
 

[PRR]

The "BC" numbers cover MANY transistors sold on the European market.

BC329 is a very ordinary small Silicon device, no great specs, can do many jobs.

BC372 is an 80V NPN Darlington. Use it like MPSA13.

> a punt on a mixed lot of components from ebay ... ... Electronis For Dummies is eye-balling me

My advice.... get a few KNOWN parts and work with them to learn the basics. DIYstompboxes, our host, will sell "TEN 2N3904 Mid-Gain NPN Transistors" for a few bucks. They are new, known-good, you know what they are. "Very common transistors that will work with your projects". Working with mystery parts can be mystifying. Save that for when you know your electronics very well.