• Country
• United States of America (USA)

• Manufacturer / Brand
• Gibson Manufacturing Co., Kalamazoo (MI)

• Year
• 1957

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 182015

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

• Number of Tubes
• 4

• Valves / Tubes
• 12AX7 12AX7 6V6 5Y3

• Main principle
• Audio-Amplification

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Power out
• 5 W (unknown quality)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Skylark GA5 - Gibson Manufacturing Co.,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 360 x 340 x 190 mm / 14.2 x 13.4 x 7.5 inch

• Notes

• In the plan is a 6V3 as third tube, but 6V3 is a typical TV tube.

  the power tube is definitely of the type 6V6, the designation 6V3 in the schematic is wrong

• Net weight (2.2 lb = 1 kg)
• 4.3 kg / 9 lb 7.5 oz (9.471 lb)

• Author
• Model page created by Hannes Gerber. See "Data change" for further contributors.

• Other Models

• Here you find 25 models, 21 with images and 22 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gibson Manufacturing Co., Kalamazoo (MI)