Control bistable (CB21261E)

This simple control circuit was found in American documentation from the 1990s.

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Antenna Amplifier (CB3869E)
This antenna or booster amplifier operates with signals from the midband (MW) range up to the VHF...
Relay Drive AC Stage (CB12182E)
With this circuit, a relay can be activated from an alternating signal with frequency up to a few...
aaaa SCR oscillator for code practice (CB8795E)
This simple SCR relaxation oscillator was indicated by a 90s Popular Electronics. The frequency is...