• Country
• United States of America (USA)

• Manufacturer / Brand
• Leeds & Northrup; Philadelphia

• Year
• 1960 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 356357

• Number of Tubes
• 4

• Valves / Tubes
• 12AX7 12AX7 6L6 6X4

• Wave bands
• - without

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Amplifier R-820-1 - Leeds & Northrup; Philadelphia

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 400 x 100 x 200 mm / 15.7 x 3.9 x 7.9 inch

• Notes

• Amplifer for industrial or test instrumentation.

• Author
• Model page created by Aria Donatella Congedo. See "Data change" for further contributors.

• Other Models

• Here you find 15 models, 14 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Leeds & Northrup; Philadelphia