TTL 555 Sequential (CB24672E)

This TTL circuit has a well-known configuration, having been found in a Radio Electronics magazine from December 1980. The power supply must be 5 V.

| Clique na imagem para ampliar |

Three-Gate Ring Oscillator (CB106)
An oscillator that uses two gates is not suitable for critical applications, as it tends to pick...
Piezoelectric Alarm (CB6425E)
We found this circuit in a 1991 Hobbyst Electronics. The circuit makes use of an unusual...
Integrated Intercom (CB16336E)
We found this circuit in a 1982 documentation. An intercom to be good must be sensitive and have...