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

Dual Frequency Generator (CB16305E)
What is a dual frequency generator for? There are several possibilities of use for this circuit. The...
4-input stepper motor control (CB23786E)
The circuit, illustrated in the figure, consists of the direct application of the ULN2003 in which...
Ultrasonic ear (CB21314E)
This circuit was found in a Popular Electronics from the 90's. The output signal can be applied to a...

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