This polarity inverter circuit for voltages down to about -12 V was found in the December 1992 issue of Radio Electronics magazine. The current is a few mA.
Found in Motorola's 1968 documentation, this control appears elsewhere in this section. The bridge...
This circuit was found in an 80's Radio Electronics. The circuit makes use of general purpose...
This circuit uses a 455 kHz IF coil and is suitable for SSB listening on a standard receiver. It...