660 Frequency Monitor
Howard Radio Company; Chicago, IL
- Country
- United States of America (USA)
- Manufacturer / Brand
- Howard Radio Company; Chicago, IL
- Year
- 1940
- Category
- Miscellaneous (Other, Various) - see notes
- Radiomuseum.org ID
- 44614
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 2
- Tuned circuits
- 1 AM circuit(s)
- Wave bands
- Wave Bands given in the notes.
- Power type and voltage
- Alternating Current supply (AC) / 115 Volt
- Loudspeaker
- - - No sound reproduction output.
- from Radiomuseum.org
- Model: 660 Frequency Monitor - Howard Radio Company; Chicago,
- Notes
- Oscillator used as frequency calibrator. Fundamental range 850 - 1030 kHz, harmonics used for higher frequency bands. The oscillator is tuned by a precision ceramic condenser carrying an extremely accurate frequnecy scale for the 10, 20, 40, 80 and 160m amateur bands.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 12 = ca. 1941 and before
- Other Models
-
Here you find 354 models, 153 with images and 214 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Howard Radio Company; Chicago, IL