This circuit was found in an English magazine from 1977. Signal inputs and outputs must be shielded, and the circuit can be powered by battery, since its consumption is low.
What we have is a powerful flasher that can be powered by voltages of 12 V like the one obtained from...
A 0 V signal initiates sampling on this circuit suggested by documentation from the 1970s. The...
This circuit is used with low impedance microphones, such as small speakers, magnetic capsules of...