Atlas DCA55, what value is too much leakage current for Fuzz Faces etc

[Peacheater81]

Based on Smallbear's article of using 9uA base current and a threshold of 300uA of leakage; the DCA55 uses 2.5mA of base current.  So is 83.3mA the equivalent leakage threshold?

I bought a bunch of PNP Ge transistors and I'm trying to figure out which ones have too much leakage.

Best

[mozz]

Post some of your gains and leakages. You do not need to go by any published gains, i have used them a lot lower and a lot higher, and also used the higher gain first. Generally q1 would be lower leakage. If your leakages are way high, they have other uses, such as a FZ-1 and some tonebenders. I often vary the 33k instead of the 8.2k to set the q2c voltage.

The DCA55 is a great little piece of test equipment. I use mine all the time and never really got into the RG method of testing, most people do not use exactly 9 volts anyway.

Don't use your fingers to test the transistors, the heat really messes up the readings.

[Harry Muff]

they are only 75 dollars , used to be around 150 back in the day lol

amazon has some new tsting devices with a smartphone/computer screen looking pretty cool for around 30 dollars that measures bjts and fets but will have to do maths for current leakage