This circuit uses CMOS integrated circuits and can operate with CMOS logic from 3 to 15 V or TTL with 5 V power. The power is obtained from the circuit under analysis.
This circuit generates various types of sounds and can be used as a toy. The circuit is from Radio...
The Buck-type DC-DC converter (voltage lowerer) shown in figure 11 is suggested by Analog Devices...
This circuit is from an American technical documentation from the 70s, but it can be easily...