2 m range converter (CB20263E)

This converter for the 150 MHz band was found in an American documentation. Transistors are uncommon today and equivalents can be used.

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Old Push Pull Lower Power Amplifier (CB944E)
This stage was used in old audio ampliiers and radios from the 1950s and 1960s. It uses one of the...
Broadband amplifier 1 (CB8406E)
Found in a 90s R-E Experimenter Handbook, this amplifier uses an integrated circuit from that...
20 A Battery Charger with Charge Control (CB4973E)
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