HRO Prototype 1.0 modified
National Company; Cambridge & Malden (MA)
- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1935 ?
- Category
- Commercial Receiver (may include amateur bands)
- Radiomuseum.org ID
- 281376
-
- alternative name: National Toy Co.
- Brand: Thrillbox
- Number of Tubes
- 9
- Main principle
- Superhet with RF-stage; ZF/IF 456 kHz; 2 AF stage(s)
- Tuned circuits
- 11 AM circuit(s)
- Wave bands
- Broadcast plus more than 2 Short Wave bands.
- Power type and voltage
- Powered by external power supply or a main unit.
- Loudspeaker
- - This model requires external speaker(s).
- Power out
- 1.5 W (unknown quality)
- Material
- Metal case
- from Radiomuseum.org
- Model: HRO Prototype [1.0 modified] - National Company; Cambridge &
- Shape
- Boatanchor (heavy military or commercial set >20 kg).
- Dimensions (WHD)
- 438 x 223 x 300 mm / 17.2 x 8.8 x 11.8 inch
- Net weight (2.2 lb = 1 kg)
- 14.5 kg / 31 lb 15 oz (31.938 lb)
- Literature/Schematics (1)
- Rider's Perpetual, Volume 8 = 1937 and before (NATIONAL PAGE 8-1)
- Author
- Model page created by Michael Gnaedig-Fischer. See "Data change" for further contributors.
- Other Models
-
Here you find 446 models, 285 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)
Collections
The model HRO is part of the collections of the following members.