Push pull amplifier (CB21941E)

Using a pair of CK722s, this booster step of a few milliwatts of power was obtained in a 1960 Gernsback publication.

Non-Inverting Amplifier (CB20172E)
This amplifier circuit for instrumentation was found in the manual of the used integrated circuit...
TTL Beep-Beep (CB14033E)
We found this circuit in a 1986 Elettronica Pratica magazine, but the components used are common. As...
High current buffer (CB7280E)
Suggested by Popular Electronics, it is a digital amplifier, for pulses with frequencies up to a...