• Country
• United States of America (USA)

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

• Year
• 1956 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 98325

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

• Number of Tubes
• 5

• Valves / Tubes
• 12AX7 or 12AD7 12AX7 12AX7 12AX7 6X4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Hi-Fi equipment

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

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Pre-Amplifier 211 - Grommes Precision Electronics,

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 12 x 4 x 6 inch / 305 x 102 x 152 mm

• Notes

• Preamp-Equalizer, mono.

• Price in first year of sale
• 166.00 $

• Literature/Schematics (1)
• Allied Radio Catalog Nº 150, 1956

• Author
• Model page created by Vitor Oliveira. See "Data change" for further contributors.

• Other Models

• Here you find 76 models, 68 with images and 52 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grommes Precision Electronics, Inc.; Chicago (IL)