20W HiFi Amplifier (T496E)

Found in a 1947 publication, this 7-tube amplifier uses four tubes in the output stage. The circuit uses a power source with a transformer.

| Clique na imagem para ampliar |

Slave flash (CB8700E)
This circuit was found in a Popular Electronics from the 90s. It uses a LASCR which is a photo-SCR...
Shunt Regulator from 1 to 100 mA (CB12948E)
The shunt type regulators are connected in parallel with the load, deflecting the current to...
Transistorized Receiver (CB21897E)
This MW receiver was found in a Raytheon circuit manual from the 1960s. Transistors are the first...