We found this circuit in a Japanese publication in 1967. The circuit consists of a 15 W audio amplifier with germanium transistors including a voltage indicator power supply.
This circuit allows controlling a LASER pointer with an input logic signal. R has 10 ohm for 3 V...
Figure bellow shows how the 4510 can be cascaded for counts higher than 10. The circuit shows the...
This type of circuit is interleaved between a microphone and a transmitter in order to improve the...