1-minute delay with Triac (CB21406E)

We found this circuit in a 1965 General Electric manual. The controlled load depends on the Triac and the 100 uF capacitor delay time.

| Clique na imagem para ampliar |

Photo-Oscillator (CB217E)
The frequency of the signal produced by this oscillator depends on the amount of light falling...
1 kHz tuning fork (CB14363E)
The circuit presented is based on a mechanical tuning fork. The circuit is suggested by National...
RC Oscillator with 741 I (CB19111E)
This is a well-known RC oscillator configuration using a 741 operational amplifier. The circuit is from...