Posts Tagged ‘germanium’:

2021-11-23 Replace Germanium With Silicon Transistors

I also remember those projects that used the CK722 and 2N107. The last few years I have been repairing older transistor radios with germanium transistors. I have had a few of them with bad germanium output transistors, and I’ve replaced them with silicon PNP transistors, along with a change in base bias resistors. They work

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