Frequency range 200 to 600m
Catswhisker detector.
Manufactured for the U.S. Army Signal Corps by de Forest, Liberty Electric, Wireless Specialty Apparatus, General Radio, and Marconi Wireless of America.
It was part of the SCR-54A artillery spotter outfit.
Net weight: 6 kg

The field outfit containing the BC-14A radio was designated Type RC-1and it was available from the supply Sargeant of the artillery battery to which the wireless man was assigned. It consisted of:

1 ST-5 carrying strap
2 P-11 headphones
4 DC-1 crystals (3 as spares)
3 M-14 crystal springs (2 as spares)
1 hank W-20 stranded wire
2 BA-4 batteries to power the tuning buzzer
1 TL-2 screwdriver set to put everything together.

BC14 image via Rdiomuseum.org

BC-14A receiver schematic. (Courtesy of Dan Merz/AWA)

 Credits and References:

1) https://www.radiomuseum.org/r/deforest_scr_54a_radio_receiving_s.html
2) AWA Journal Spring 2023  Vol 63 #2 for the schematic.
 
 

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July 21/23