Dual Four Ch= 169 Power tube 42

Crosley Radio Corp.; Cincinnati (OH)

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  • Year
  • 1933/1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 36269

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast (MW), Police, sometimes also early TV (75-200m).
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Dual Four Ch= 169 [Power tube 42] - Crosley Radio Corp.;
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Dimensions (WHD)
  • 10.125 x 12.25 x 8 inch / 257 x 311 x 203 mm
  • Notes

  • "Dual Range" superhet, wavebands BC 540 - 1500 Kc (200 to 550 m) and Police/Amateur 1500 - 35000 Kc (80 to 200 m).

    Rider's specifies 2.5 V heating instead of 6.3 V for tube type 42, which is consistent with the advertising: "2.5 V Heater Type Tubes". But the schematic indicates a separate 6.3 V winding on the mains X-former for the 42, which thus is separated from the 2.5 v winding.

    May be sometimes it was intended to employ a 45 tube instead?

    There is also a revised edition using different tubes.

  • Price in first year of sale
  • 21.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Crosley Service Supplement Index, Suppl. 68)
  • Literature/Schematics (3)
  • - - Manufacturers Literature (Crosley Boadcaster 12, Nov. 15 1933)

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