• Country
• United States of America (USA)

• Manufacturer / Brand
• General Household Utilities Co. (Grunow); Chicago Ill.

• Year
• 1936 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 164171

• • Brand: Grunow (trade name)

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

• Number of Tubes
• 5

• Valves / Tubes
• 1A4 1A6 1A4 1B5 33

• Main principle
• Superhet with RF-stage; ZF/IF 465 kHz

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 2 & 135 & -13,5 Volt

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

• from Radiomuseum.org
• Model: Grunow 510 Ch= 5-NB - General Household Utilities Co

• Notes

• Stein "Cathedral & Tombstone Radios" lists 2 bands for this model.

• Circuit diagram reference
• Rider's Perpetual, Volume 8 = 1937 and before

• Mentioned in
• Cathedral & Tombstone Radios (page 130.)

• Author
• Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.

• Other Models

• Here you find 138 models, 100 with images and 126 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Household Utilities Co. (Grunow); Chicago Ill.