- Country
- United States of America (USA)
- Manufacturer / Brand
- National Cooperatives, Inc.; Chicago
- Year
- 1948 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 116044
-
- Brand: Co-op
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- Superhet with RF-stage; ZF/IF 465 kHz; 2 AF stage(s)
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- AC/DC-set / 115 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm
- from Radiomuseum.org
- Model: R-646 - National Cooperatives, Inc.;
- Shape
- Tablemodel, with any shape - general.
- Notes
-
Most likely manufactured by Setchell Carlson.
Earlier version (confirmed made by Setchell Carlson) without the RF amp stage and earlier tubes is the R-546.
- Circuit diagram reference
- Rider's Perpetual, Volume 19 = 1949 and before
- Author
- Model page created by Egon Penker. See "Data change" for further contributors.
- Other Models
-
Here you find 8 models, 3 with images and 7 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from National Cooperatives, Inc.; Chicago