• Country
• United States of America (USA)

• Manufacturer / Brand
• Pentron Corporation; Chicago (IL)

• Year
• 1949 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 50382

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

• Number of Tubes
• 7

• Valves / Tubes
• 6BE6 6BA6 6AT6 6SJ7 6C4 6V6GT 6X4

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

• Wave bands
• Broadcast only (MW).

• Details
• Wire Recorder (or -Player)

• Power type and voltage
• Alternating Current supply (AC) / 110-120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm

• from Radiomuseum.org
• Model: ASTRA-SONIC 748 - Pentron Corporation; Chicago

• Shape
• Tablemodel, with any shape - general.

• Notes

• AC Operated Combination Phono-Radio-Wire Recorder, Superheterodyne Receiver
  with Loop Antenna
  AM: 540-1620kc

   

• External source of data
• Ernst Erb

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

• Mentioned in
• Photofact Folder, Howard W. SAMS (491-6 Set 53 Folder 6)

• Other Models

• Here you find 63 models, 52 with images and 47 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Pentron Corporation; Chicago (IL)