• Country
• United States of America (USA)

• Manufacturer / Brand
• MILITARY U.S. (different makers for same model)

• Year
• 1943

• Category
• Military Equipment (not Re, Tr or RXT)

• Radiomuseum.org ID
• 143879

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

• Number of Tubes
• 8

• Valves / Tubes
• 6SQ7 6J5 6SN7GT 6SN7GT 6SR7 6SN7GT 6J5 80

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

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

• Power out
• 2 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Speech Amplifier BC-614-E - MILITARY U.S. different makers

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 420 x 210 x 260 mm / 16.5 x 8.3 x 10.2 inch

• Notes

• Speech Amplifier BC-614-E;
  One instrument, 2 w peak output, 3 input channels: low for T-17 or T-30 microphone, med. for EE-8 telephone and high for T-50 mic., 500 ohms output impedance, made by Detrola Corp. for Signal Corps US Army.

  Options : Carbon or dynamic microphone.

  Civilian version : HT-5H

• Net weight (2.2 lb = 1 kg)
• 14 kg / 30 lb 13.4 oz (30.837 lb)

• Price in first year of sale
• 70.00 USD

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 398 models, 350 with images and 210 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from MILITARY U.S. (different makers for same model)