This amplifier was found in a 1957 Rayrtheon documentation. The circuit can be fitted with a BC558 transistor. Driver and output transformers can be obtained from unused transistor radios.
Found in a 1963 documentation, this circuit employs germanium transistors of the time. Transformer and...
This circuit shows how to interface a CMOS circuit with a microcontroller or other circuit using an...
For readers who need high continuous voltages, a low current power supply can be built with few...