Low Voltage Control (CB21155E) This low voltage power control was found in a Popular Electronics from the 90's. The MOSFET can be almost any type depending on the load current. It must have a heat sink. a hre

Infrared Remote Control Test Receiver (CB18803E)
We found this circuit in a 1996 publication. Equivalent components can be tried, especially in the...
Light Alarm (CB12603E)
This somewhat unusual configuration, mainly in the form of adjustment, is from a 1978 publication. The...
Common collector stage (CB22226E)
This circuit employs an old germanium transistor. The circuit is from a 1950s publication and uses...

Low Voltage Control (﻿CB21155E) This low voltage power control was found in a Popular Electronics from the 90's. The MOSFET can be almost any type depending on the load current. It must have a heat sink. a hre