- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1939 ?
- Category
- Power supply/conditioner or battery or charger
- Radiomuseum.org ID
- 86645
-
- alternative name: National Toy Co.
- Brand: Thrillbox
- Number of Tubes
- 1
- Valves / Tubes
- 80
- Details
- Power Supply (not only Batt.El.)
- Power type and voltage
- Alternating Current supply (AC) / 115 / 230 Volt
- Material
- Metal case
- from Radiomuseum.org
- Model: SPU-697 - National Company; Cambridge &
- Shape
- Rack
- Notes
- voltages: filaments 6,2V AC; B+ 240V DC, 70 mA
rack mounted power supply used to power HRO / HRO-5 series receivers.
- Circuit diagram reference
- Rider's Perpetual, Volume 14 = 1944 = before 1943
- Author
- Model page created by Martin Bösch. See "Data change" for further contributors.
- Other Models
-
Here you find 445 models, 284 with images and 189 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from National Company; Cambridge & Malden (MA)