• Country
• United States of America (USA)

• Manufacturer / Brand
• Approved Electronic Instr. Corp.

• Year
• 1952 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 32847

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

• Number of Tubes
• 12

• Valves / Tubes
• 6CB6 or 6AG5 6BE6 6J6 6AU6 6AU6 6AU6 6AU6 6AL5 6BA6 6BE6 6BA6 6AT6

• Main principle
• Superhet with RF-stage; ZF/IF 456/10700 kHz

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

• Power type and voltage
• Powered by external power supply or a main unit. / 6.3 VAC & DC: 140 V & 170 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: A-710 - Approved Electronic Instr.

• Shape
• Chassis only or for «building in»

• Notes

• Approved Electronics model A-710 is an AM-FM superheterodyne tuner for custom installation. Power supply requirements  (AM) 170 V DC,  (FM) 140 V DC, (Filaments) 6.3 V AC.

   

   

   

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 20 covering 1950

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 177, folder 5, dated 8-52)

• Other Models

• Here you find 16 models, 15 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Approved Electronic Instr. Corp.