Transformerless 8 W Amplifier (T132E)

This interesting configuration found in a 1950s documentation is characterized by not using transformers, except in the power supply.

Common Emitter Stage (CB4936E)
This is a typical common emitter amplifier stage configuration. The transistor can be used...
10.7 MHz Amplifier (CB4290E)
This is a classic FM amplifier IF amplification stage configuration. The circuit is from a 1980s...
3 Channel Mixer (CB1288E)
This simple 3-channel passive mixer can be used with low-intensity signal sources but requires...