Posts Tagged ‘power’:

2023-07-12 DC-DC Converters That Used Germanium Power Transistors

Me and my high school friend made a DC to DC converter that would give us 30 or so volts at a couple amps from a 12 volt battery.  We used germanium power transistors which could not go much above 10 kHz.  The Delco’s and the 2N458A’s were our favorites – we managed to push

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2020-06-11 Optocouplers Don’t Always Protect

From FB comment Monty Ross It’s true that optocouplers are used for isolation. But I have seen whole sections of PC boards with a hole burned where the optocouplers used to be. It is incredible how much damage the power lines do to the PC boards due to high voltage spikes in the power. Transformers

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