- United States of America (USA)
- Manufacturer / Brand
- Collins Radio Company; Cedar Rapids (IA)
- Amateur Transmitter (only)
- Radiomuseum.org ID
- Number of Tubes
- Main principle
- Wave bands
- Short Wave (SW only)
- Power type and voltage
- Alternating Current supply (AC) / 110 Volt
- - - No sound reproduction output.
- Metal case
- from Radiomuseum.org
- Model: Transmitter 30J - Collins Radio Company; Cedar
- Boatanchor (heavy military or commercial set >20 kg).
- Dimensions (WHD)
- 20 x 60 x 13 inch / 508 x 1524 x 330 mm
- Collins 30J Transmitter: can be tuned in the shortwave range included 160 - 20 m ham bands using coil assemblies, CW (A1), AM (A3) 250 W.
In early variants, a Collins C-100A has been in use as oscillator and Collins C-101 as R-F output tubes;
In the later Variant Collins 30J-18 introduced in 1938 used a 802 in the crystal oscillator, one or two 807 as frequency multiplier and buffer and push-pull 813 as output tubes. In the modulator, two ZB120 (smilar to 838) have been in use.
The 30J has been the last Collins pre-war transmitter in art deco design before Collins switched to war production.
- Net weight (2.2 lb = 1 kg)
- 386 lb (386 lb 0 oz) / 175.244 kg
- Model page created by Martin Bösch. See "Data change" for further contributors.
- Other Models
Here you find 96 models, 71 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Collins Radio Company; Cedar Rapids (IA)