Broadband voltage follower (CB9344E)

This circuit was found in a 1970s General Electric documentation. Transistors are uncommon today.

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Time delay (CB23969E)
This circuit turns on a lamp after the time set on the potentiometer. The circuit is from a Radio...
427 to 439 MHz booster (CB7438E)
This signal amplifier for ATV in the 427 to 439 MHz band was found in a magazine 73 for radio...
Complementary Symmetry Amplifier (CB12880E)
This amplifier has a few Watt output, using old transistors. The speaker is 45 ohms, but with...