Westinghouse model RC radio receiver, consisting of coupled type RA receiving tuner and type DA detector-amplifier. Marked on tuner plate: "Westinghouse Receiving Tuner / Type RA / Wavelength: 180-700 ...

Radio-controlled or remote-controlled toys, popularly called RC toys, are self-powered and can be controlled from a distance using a remote that works with radio waves. 1. When we push the control, ...

[QRP Gaijin] likes to build regenerative receivers. If you’ve ever built a serious one, you know there are (at least) two problems: One is you need a variable capacitor (hard to find these days). The ...