Silver-Super U17

Guthman & Co., Inc., Edwin I.; Chicago (IL)

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  • Year
  • 1939
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 143623

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC)
  • Power out
  • 4.25 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Silver-Super U17 - Guthman & Co., Inc., Edwin I.;
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 460 x 250 x 300 mm / 18.1 x 9.8 x 11.8 inch
  • Notes
  • Guthman Silver Super U-17: coverage 540 kHz - 61 MHz in six switchable bands, regenerative mixer, crystal filter.
    Valves: V1 (6K8) conv, V2 (7A7) if amplifier, V3 (6B8) detector, avc, af1, V4 (7A7) beat frequency oscillator, V5 (7A7) meter amp, V6 (6V6) af out, V7 (VR150) voltage regulator, V8 (80) rectifier.
    Also sold as kit.
    Set designed by McMurdo Silver, who was employed by Edwin I. Guthman as chief engineer after his company folded in 1938 and designed a line of amateur radio equipment for Guthman.
  • Net weight (2.2 lb = 1 kg)
  • 15 kg / 33 lb 0.6 oz (33.04 lb)
  • Source of data
  • -- Original prospect or advert
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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