Found in an Electronic Design from the 90s, this circuit does not need sinks for its components. The circuit converts 8 to 12 V input into 5 V x 3 A output.
This circuit is from 1968 General Electric documentation. It can certainly be adapted for any...
This tester from a 1960 magazine is only for capacitors with insulation voltages above 200 V (110...
Found in a 1991 publication this circuit can be assembled with more modern components. We can use...