• Year
  • 1927
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 59987
    • Brand: Marvel

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • TRF without regeneration; 2 AF stage(s)
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 90-130 Volt
  • Loudspeaker
  • Horn
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 993 - Steinite Radio Co., Warwick
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes
  • Chassis common for models 991, 992 and 993. Two front window dials, center voltmeter. Built-in aerial. 20-inch air column type speaker built in, chamber made of both metal and wood. Driver unit Nathaniel Baldwin.

    The chassis is equipped with two sockets for rectifying tubes. Before UX280 or CX380 types were available, the set could be operated with two UX213 or two CX313 type rectifiers (with a total of 8 tubes). When using the newer types, only one of the two sockets may be used (total of 7 tubes).

    Price with tubes. Early sets provided with two 213 or 313 types.

    Mahogany cabinet in DUCO finish.

  • Price in first year of sale
  • 175.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

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