Low Voltage Test (CB22158E)

This is a simple voltage tester for voltages from about 2V to about 15V with the indicated resistor and red LEDs.

Q Multiplier (CB10064E)
This circuit is suitable for use with 1400 kHz range FI receivers. Changes can be made to other IF...
Remote Control Test (CB4376E)
This circuit came out in the American magazine Electronics Now, in a 1993 issue. The magazine no...
Function generator 741 (CB10135E)
This circuit produces rectangular and triangular signals using two 741 operational. The source must...