• Country
• United States of America (USA)

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

• Year
• 1950

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 164682

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

• Number of Tubes
• 21

• Valves / Tubes

• Main principle
• Superheterodyne (common)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• Material
• Metal case

• from Radiomuseum.org
• Model: Videometer - National Company; Cambridge &

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 20 x 11 x 18 inch / 508 x 279 x 457 mm

• Notes
• National Videometer;
  7" round CRT TV with US FCC standard 12 channel VHF turret tuner and big size meter for mains voltage and signal strength. Unit designed for antenna measurements & alignment.

• Net weight (2.2 lb = 1 kg)
• 55 lb 0 oz (55 lb) / 24.970 kg

• Source of data
• -- Original prospect or advert

• Author
• Model page created by a member from A. 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)