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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Exposure time meter (CB8114E)
Indicated by a Popular Electronics of the 90s originally to measure the light determining the exposure...
TTL Buffer MC34071 (CB15280E)
Other operational amplifiers series, such as the MC34072, MC34074, MC35071, MC35072, MC35074 d...
Source follower (CB6963E)
Found in American documentation, this circuit shows how to polarize a FET in bootstrap mode. The...