This circuit is from an English magazine from 1976. By replacing the transistor for a BC548, the circuit can be easily assembled nowadays TTL gate feedback resistors can be replaced to change the sound. Power must be supplied with a voltage of 5 V.
This circuit is from an English magazine from 1976. By replacing the transistor for a BC548, the circuit can be easily assembled nowadays TTL gate feedback resistors can be replaced to change the sound. Power must be supplied with a voltage of 5 V.