• Country
• United States of America (USA)

• Manufacturer / Brand
• Kay Musical Instruments Co., Chicago, Ill.

• Year
• 1948 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 197497

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

• Number of Tubes
• 3

• Valves / Tubes
• 6SL7GT 6V6GT 5Y3GT

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Guitar Amplifier

• Power type and voltage
• Alternating Current supply (AC) / 105-125 Volt

• from Radiomuseum.org
• Model: Musical Instrument Amplifier 77 - Kay Musical Instruments Co.,

• Shape
• Tablemodel, with any shape - general.

• Notes

• Kay, Model 77 is an AC operated Musical Instrument Amplifier.

  Schematic (Sams) shows a PM speaker.

• Literature/Schematics (4)
• Photofact Folder, Howard W. SAMS (Set 42, Date 7/48, Folder 4812-13)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 4 models, 3 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kay Musical Instruments Co., Chicago, Ill.