NC-33

National Company; Cambridge & Malden (MA)

Data

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Country
United States of America (USA)

Manufacturer / Brand
National Company; Cambridge & Malden (MA)

Year
1948–1950

Category
Amateur-Receiver (amateur bands, may include broadcast bands)

Radiomuseum.org ID
87732

- alternative name: National Toy Co.
- Brand: Thrillbox

Picture
Schematics

NC-33; National Company; (ID = 1175137) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 1408594) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 1408596) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 1408597) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 1408598) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 1408600) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 3056187) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 3056188) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 3056189) Amateur-R — National Company; NC-33 (3)

NC-33; National Company; (ID = 249169) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 975666) Amateur-R — National Company; NC-33 (2)

NC-33; National Company; (ID = 975667) Amateur-R — National Company; NC-33 (2)

NC-33; National Company; (ID = 975668) Amateur-R — National Company; NC-33 (2)

NC-33; National Company; (ID = 975669) Amateur-R — National Company; NC-33 (2)

NC-33; National Company; (ID = 1315605) Amateur-R — National Company; NC-33 (2)

NC-33; National Company; (ID = 1408593) Amateur-R — National Company; NC-33 (2)

NC-33; National Company; (ID = 1477588) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1477589) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1477592) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1477593) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1477594) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1477595) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1477596) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1477597) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1730117) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1730118) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 1730119) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 2025043) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 2025044) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 2049297) Amateur-R — National Company; NC-33 (1)

NC-33; National Company; (ID = 2657471) Amateur-R — National Company; NC-33 (1)
National NC-33 receiver

Click on the schematic thumbnail to request the schematic as a free document.

Technical Specifications

Number of Tubes
6

Valves / Tubes
12SA7 12SG7 12H6 12SL7GT 35L6GT 35Z5GT

Main principle
Superheterodyne (common); ZF/IF 455 kHz

Wave bands
Broadcast plus more than 2 Short Wave bands.

Power type and voltage
AC/DC-set / 105-130 Volt

Loudspeaker
Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

Power out
1.5 W (unknown quality)

Material
Metal case

from Radiomuseum.org
Model: NC-33 - National Company; Cambridge &

Shape
Tablemodel, with any shape - general.

Dimensions (WHD)
423 x 222 x 216 mm / 16.7 x 8.7 x 8.5 inch

Notes
coverage 500 - 35000 kHz in four bands, AM, CW(BFO); noise limiter, band spread

Net weight (2.2 lb = 1 kg)
9.5 kg / 20 lb 14.8 oz (20.925 lb)

Price in first year of sale
66.00 $

Source of data
Communications Receivers

Mentioned in
Photofact Folder, Howard W. SAMS (4817-14 Set 47 Folder 14)

Author
Model page created by Martin Bösch. 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)

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Collections

The model is part of the collections of the following members.

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