• Country
• United States of America (USA)

• Manufacturer / Brand
• General Electric Co. (GE); Bridgeport CT, Syracuse NY

• Year
• 1939

• Category
• Television Receiver (TV) or Monitor

• Radiomuseum.org ID
• 42323

• • Brand: Musaphonic

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

• Number of Tubes
• 22

• Valves / Tubes
• 6F8G 6SK7 6B8 6SC7 6F6 1852 or 6AC7 1853 or 6AB7 5U4G 6H6 6F6G 6N7G 6V6G 6AL6G 879 or 2X2 MW22-2

• Main principle
• Superheterodyne (common); ZF/IF 12750/8250 kHz

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 115-125 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12 inch = 30.5 cm

• Power out
• 10 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: HM225 - General Electric Co. GE;

• Shape
• Console with any shape - in general

• Notes
• TV console model HM225, picture size 5.75 by 7.75 inches. Touch-Tuning selector keys. See also HM-226-7A with MW31-3 CRT and identical chassis.
  
  TV bands: 44 - 50, 50 - 56, 66 - 72, 78 - 81, 84 - 90 Mc.
  
  TV chassis tubes: 2x 1853 (6AB7), 2x 1852 (6AC7), 2x 5U4G, 2x 6F6, 4x 6F8G. All tubes listed once per type.

• External source of data
• Ernst Erb

• Mentioned in
• Rider's Perpetual, Volume 11 = ca. 1940 and before (11-35)

• Other Models

• Here you find 2916 models, 2139 with images and 2042 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Electric Co. (GE); Bridgeport CT, Syracuse NY