Improved 3-Tube Doerle Signal Gripper

Radio Trading Company; New York

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  • Year
  • 1933
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 258365

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • TRF with regeneration
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Storage and/or dry batteries / 2 & 90 or 135 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Improved 3-Tube Doerle Signal Gripper - Radio Trading Company; New
  • Shape
  • Chassis only or for «building in»
  • Notes

  • The original Doerle Signal Gripper was designed by W.C. Doerle. That receiver employed a type 32 tube in the RF Amp section.  The "Improved" version marketed by Radio Trading Co. used a type 34 tube. The receiver covered 15 to 200 meters with plug-in coils.  The set would operate with either 90 or 135 volt "B" battery. It was offered as a kit or wired.

    In advertising, Radio Trading Co. says "By special arrangement with the publishers of Short Wave Craft, we are now in a position to sell you these official receivers..." Gernsback (publisher of Short Wave Craft) also published a booklet entitled, "How to Build 4 Doerle Short Wave Sets."  

  • Price in first year of sale
  • 11.85 USD
  • Mentioned in
  • Short Wave Craft June 1933
  • Author
  • Model page created by Wayne Childress. See "Data change" for further contributors.

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