Circuits & Schematics - Antique

Subsection: "Antique"

Search results: 2 Output: 1-2

Add-on beat frequency oscillator (BFO) for shortwave radio
Gavin Watkins
Circuits Oscillators Radio Antique Texas Instruments LP2950
Expensive shortwave radios include beat frequency oscillators, so why not also add one to an inexpensive radio version? Broadcast shortwave (SW) radio use may be declining, but there are still lots of interesting signals to listen to between 1.6 ...
Aug 25, 2026
High Fidelity Phonograph Schematics
Circuits Antique Audio Capehart 52PH56M 52PH56B 53PH56M 53PH56B 53PH56F
Caperhart-Farnsworth Company Amplifier Chassis: CA-241, CA251 Download schematics in pdf
Aug 4, 2007

Slices