20 kHz ring counter (CB6138E)

We found this circuit in an old General Electric documentation. In fact, PUTs are not common components today. The circuit is valid as a reference.

| Clique na imagem para ampliar |

Front detector (CB9688E)
Found in American documentation from the 90s, this CMOS circuit detects the source of a signal and can...
12 To 9 V Converter with Protection (CB5006E)
I found this circuit in an old English magazine from 1981, but it can still be assembled with some...
Triangular and sawtooth generator (CB21447E)
This circuit was obtained from a 1969 Electronic Design. Transistors admit modern equivalents. The frequency...