- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1932 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 49558
-
- alternative name: National Toy Co.
- Brand: Thrillbox
- Number of Tubes
- 5
- Main principle
- TRF with regeneration; 2 AF stage(s)
- Tuned circuits
- 2 AM circuit(s)
- Wave bands
- Short Wave (SW only)
- Power type and voltage
- Dry Batteries / 2 / 3/22,5/67,5/135 Volt
- Loudspeaker
- - For headphones or amp.
- from Radiomuseum.org
- Model: DC SW-34 - National Company; Cambridge &
- Shape
- Tablemodel, with any shape - general.
- Notes
- four shortwave + three optional medium wave plug-in coils (same as SW-5): 15,5-26,6 m / 23,5-41 m / 37,5-65 m / 64-115 m (1,7 - 20 MHz) optional plug-in coils 110-175 m / 170-300 m / 290 - 570 m (2727 - 526 kHz), new linear dial instead of vertical drum dial found in the original SW-5;
schematic found in Rider's, probably identical to set SW-34
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 8 = 1937 and before
- 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)