NC-TV7 late
National Company; Cambridge & Malden (MA)
- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1950 ?
- Category
- Television Receiver (TV) or Monitor
- Radiomuseum.org ID
- 226859
-
- alternative name: National Toy Co.
- Brand: Thrillbox
Picture from Sams Photofact
National TV-7 metal cabinet
National TV-7 Late rear view
National TV-7 Late rear chassis view
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 21
- Valves / Tubes
- 6AU6 6AG5 6C4 6AU6 6AU6 6AU6 6AL5 6AU6 6AU6 6AU6 6T8 6V6GT 6SN7GT 6SN7GT 6SN7GT 6SN7GT 12AU7 1B3GT 6X5GT 6X5GT 7JP4
- Main principle
- Superheterodyne (common); ZF/IF 37300 kHz
- Wave bands
- VHF incl. FM and/or UHF (see notes for details)
- Power type and voltage
- Alternating Current supply (AC) / 105-115; 115-130 / 117 Volt
- Loudspeaker
- 2 Loudspeakers
- Material
- Metal case
- from Radiomuseum.org
- Model: NC-TV7 [late] - National Company; Cambridge &
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 20.75 x 12.75 x 17.75 inch / 527 x 324 x 451 mm
- Notes
-
7" round CRT, tuning range channels 1 through 13 (SAMS: 2 though 13). 2 oval speakers 4" x 6".
Some models have been fitted with an auto-transformer to allow operating at lower mains voltages. These can be identified by an additional transformer, and two fuse positions for 105 - 115 V and for 115 - 130V. This might be standard for this revision.
Early production models use 6AL5 and 6AT6 for ratio detector and AF amp instead of a single 6T8; see model NC-TV7 [early]. Early models also have two fuses in place of only one.
- Mentioned in
- Photofact Folder, Howard W. SAMS (Set 67, Folder 14, Date 8/49)
- Literature/Schematics (1)
- Rider's TV; 2-1, 3-1 and 3-3
- 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)