• Country
• United States of America (USA)

• Manufacturer / Brand
• General Electric Co. (GE); Bridgeport CT, Syracuse NY

• Year
• 1957 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 203471

• • Brand: Musaphonic

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

• Number of Tubes
• 1

• Valves / Tubes
• 6SC7

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 50/60 Hz, label 115, schematic 117 = 105-125 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Phono-Mic Preamplifier UPX-003B - General Electric Co. GE;

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 3.625 x 3.75 x 3.625 inch / 92 x 95 x 92 mm

• Notes

• Mono.

  Gain:  32dB
  Output (with 10 mv input):  350 mv @ 3000 cps
  Output impedance @ 30 cps:  240k ohms
                              @ 15k cps:  8k ohms

• Net weight (2.2 lb = 1 kg)
• 1.25 lb (1 lb 4 oz) / 0.568 kg

• Author
• Model page created by Gottfried Silberhorn. See "Data change" for further contributors.

• Other Models

• Here you find 2906 models, 2125 with images and 2031 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Electric Co. (GE); Bridgeport CT, Syracuse NY