Direct Coupling Amplifier (CB20042E)

Applications for this circuit include hearing aid, stethoscope, etc. Transistors are general purpose and powered by a single 1.5 V battery.

| Clique na imagem para ampliar |

Astable CMOS 4069 (CB17316E)
This version of an astable CMOS with the 4069, and which appears elsewhere on this site and in...
Symmetrical 15 V power supply (CB8498E)
Found in na 1970 EDN this circuit has a parallel regulation providing a symmetrical output of 15 V....
Remote control receiver (CB22360E)
This circuit is the receiver for the previous remote-control transmitter. We found it in the same...