This circuit was obtained from an American 80's documentation. The balanced mixer can be shown in CB4234. The circuit is for controlling RF signals in a modulation system.
This circuit is interspersed between the external antenna and the short-wave receiver, providing much...
This is a VU-meter bargraph with up to 7 LEDs according the Power supply voltage. Adjusts are made by...
Poptronics recommends this circuit for use in the car when the headlights are left on. The circuit...