10 kW Heating Control (CB21378E)

This circuit is intended for the control of a heating system motor with up to 10 kW of power. The circuit was found in old American documentation.

| Clique na imagem para ampliar |

Voltage inverter (CB23691E)
This voltage inverter circuit is from a Radio Eklectronics from October 1965. It was used in...
Rocket Altimeter (CB25357E)
Today we have more compact solutions. This is from a Radio Electronics magazine from October 1990....
Police Siren for Alarms (CB16561E)
The circuit presented was found in a 1988 documentation. It consists of an alarm siren that it...