This circuit was found in the July 1994 issue of Electronics Now magazine. The relay can be rated at up to 12 V and 100 mA. The transistor is a general purpose transistor.
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...