Single Signal Super 5A

McMurdo Silver, Inc.(pre WW2); Chicago

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  • Year
  • 1933
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 207867

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

 Technical Specifications

  • Number of Tubes
  • 9
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Single Signal Super 5A - McMurdo Silver, Inc.pre WW2;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 17.5 x 7 x 10.5 inch / 445 x 178 x 267 mm
  • Notes

  • The McMurdo Silver Single Signal Super 5A receiver has a coverage 1.5 to 30 MHz in four bands. (Different sources list the frequecy coverage of the 5A as different, but the 1.5 to 30 MHz range is from an article by McMurdo Silver in Short Wave Craft of December 1933.) The receiver includes a crystal filter and AGC. An 8-inch Jensen speaker was furnished with the receiver.

    Tube Compliment: V1 (58) rf stage, V2 (2A7) 1st detector / signal frequency oscillator, V3, V4 if amplifier, V5 (56) 2nd detector, V6 (56) AVC, V7 (58) beat frequency oscillator, V8 (59) af out, V9 (80) rectifier.

    This was one of the receivers to accompany Admiral Byrd on his 1933-1934 Antartic expedition.

  • Mentioned in
  • Radio (magazine) October 1933 page 15
  • Literature/Schematics (1)
  • QST (September 1933 page 71)
  • Literature/Schematics (2)
  • Short Wave Craft December 1933 pageS 458-459, 500
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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