• Country
• United States of America (USA)

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

• Year
• 1959 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 119739

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

• Number of Tubes
• 8

• Valves / Tubes
• 12AU7 12BH7A 6550 or KT88 6550 or KT88 6L6GB 0B2 5U4GB 5U4GB

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

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

• Material
• Metal case

• from Radiomuseum.org
• Model: 260A - Grommes Precision Electronics,

• Shape
• Chassis only or for «building in»

• Notes
• For speaker with 4, 8 or 16 ohms.

• Source of data
• -- Collector info (Sammler)

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 2-59, Set 431, Folder 10)

• Author
• Model page created by a member from A. 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)