Delayed relay (CB10191E)

This simple SCR delay circuit for activating a relay was found in documentation from the 1980s. The components used are common today.

| Clique na imagem para ampliar |

Ultrasound Receiver Using the 741 (MSB072E)
This is the simulation of a Ultrasound Receiver using the 741 IC, an operational amplifier....
Transistor Crystal Oscillator (CB5115E)
The resonant circuit depends on the crystal frequency that can go up to a few megahertz. The...
SSB Side Band Selector (CB4110E)
With this circuit it is possible to select the upper or lower side band on an SSB transmission by...