Waveform Generator (CB22447E)

Based on 4066 CMOS, we found this circuit in a Popular Electronics from 1992. The signal is synthesized from a digital ladder network.

Parallel Multi-Loop Alarm CIR13989S CB6652E (CB6652E)
We found this circuit in a Popular Electronics of the 80's. The circuit can be used to drive...
Continuity tester (CB9325E)
Found in an Electronic Design from the 90s, this sophisticated continuity tester uses operational...
SCR Timer (CB10583E)
This circuit was found in a 1974 English magazine. We can also assemble it using BC558 transistor for...