We have found 6 items matching your search query.

The Telegraph Wireless World

N6TT’s site about amateur radio and communication via Morse Code.

Crystal Oscillators

From N6EV. Tube oscillator schematics, and discussion.

Crystal Grinding

FT243 information compiled by Paul Carreiro, N6EV.

N6QAB Radio Direction Finding

Pictures and descriptions of radio direction finding and related equipment.

Quartz Crystals Technical Data

A useful technical reference page for crystals at International Crystal Manufacturing.

Bliley Electric Company History: The Early Years, 1930-1955

History of the company that invented and patented the overtone crystal, etch-to-frequency and variable crystals. Source for ads, engineering bulletins, patents and manuals.