• Country
• United States of America (USA)

• Manufacturer / Brand
• Grommes Precision Electronics, Inc.; Chicago (IL)

• Year
• 1952 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 354812

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

• Number of Tubes
• 6

• Valves / Tubes
• 6SC7 6SQ7 6SL7 6V6GT 6V6GT 5Y3GT

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 60Hz, 117=110-120 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: Grommes 51PG - Grommes Precision Electronics,

• Shape
• Chassis only or for «building in»

• Notes

• Grommes model 51PG is an AC operated 4 channel audio amplifier. 

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (set 163, folder 6, dated 4-52)

• Author
• Model page created by Dirk Taekels. See "Data change" for further contributors.

• Other Models

• Here you find 75 models, 68 with images and 51 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grommes Precision Electronics, Inc.; Chicago (IL)