Very low HFE silicon transistors, what can I use them in?

Started by eightsevenzero, August 07, 2021, 12:40:05 AM

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eightsevenzero

I have a ton of Si NPN transistors with an hfe of around 35-50, apart from doing darlington pairs with them are there any other circuits I can use them in as-is?

kaycee

Fuzz face would be a good candidate, can pair with a higher gain in q2.

Vivek

Look at Valve Wizard's GLASSBLOWER, it uses transistors as a kind of charge pump, to increase headroom in Opamps.

That application does not need extremely high hFE

Electric Warrior

Quote from: kaycee on August 07, 2021, 03:42:00 AM
Fuzz face would be a good candidate, can pair with a higher gain in q2.

Only when rebiasing. With silicons, the stock circuit requires higher gains.