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

One Transistor High Power Switch (CB990E)
This circuit can handle 25 A unde a 32 V voltage using a hight power old transistor. This...
Optical Isolator and AC Trigger Power Switch (CB12414E)
This solid-state relay (SSR) or shield was found in a 1995 Electronics Now. The transistor can be...
Tunable notch filter (CB7402E)
Found in 80's Electronic Engineering, this circuit can tune the frequency to be rejected. The power...

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