• Country
• United States of America (USA)

• Manufacturer / Brand
• Olympic Radio & Television, Inc.; New York (NY)

• Year
• 1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 49870

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

• Number of Tubes
• 6

• Valves / Tubes
• 12AT7 or 14F8 12SA7 12SK7 12SQ7 35L6GT 35Z5GT

• Main principle
• Superheterodyne (common); ZF/IF 455/21750 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)     3 FM circuit(s)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• AC/DC-set / 105 - 125 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 7-537W - Olympic Radio & Television,

• Shape
• Tablemodel, with any shape - general.

• Notes

• Color=Walnut The FM tuner section is a Fremodyne converter with one half of the 12AT7 dual triode as local oscillator oscillating above the RF frequency and the other half as input mixer and super-regenerative slope detector at the IF frequency of 21.75MHz.

  Some models utilize the 14F8 for the Fremodyne converter

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 19 = 1949 and before

• Other Models

• Here you find 594 models, 272 with images and 542 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Olympic Radio & Television, Inc.; New York (NY)