100 kHz VCO (CB21489E)

This voltage-controlled oscillator was found in a 1965 Electronic Design. Transistors are from the time, and modern equivalents can be tested.

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CCFL Lamp 2.2 W Inverter (CB12536E)
The circuit shown in figure 1 consists of an Inverter Module for CCFL Lamp that can be supplied with...
Power supply for 250 W amplifier (CB24275E)
This circuit is the power supply for the amplifier in the previous circuit. The transformer is 5 A...
Tuner with MOSFET (CB6914E)
This circuit serves as a reference for the components used and the time. The circuit is from 1967...