Récepteur Télégraphie Amateur RTA4

SBR Société Belge Radio-Electrique, Bruxelles

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  • Year
  • 1928/1929
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 228456

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown); Neutrodyne
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries / 4 & 80 & 120 & -15 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Récepteur Télégraphie Amateur RTA4 - SBR Société Belge Radio-
  • Shape
  • Chassis only or for «building in»
  • Notes
  • In spite of its name, these receivers can be used to listen to regular radio broadcasts.
  • The "Récepteur Télégraphie Amateur" models RTA3 and RTA4 were on sale as kit or fully factory assembled.
  • The "Récepteur Télégraphie Amateur" model RTA5 was on sale as partially assembled kit or fully factory assembled.
  • There are no type plates on the radios. The name we use here is found on the manuals and on contemporary commercial flyers.
    • RTA3 was powered from (storage) batteries. A separate internal negative grid voltage battery ("C" battery) is present. There is an alternative tubeset: R81 , R76 , R79.
    • RTA4 was powered from (storage) batteries. It was also possible to use it with an external M35 power supply. In that case, following tubes had to be used: E424 , E424 , E424 , B403. A separate internal negative grid voltage battery is present, even when powered by M35.
    • RTA5 was powered by the AC mains with an internal power supply. It has also a pick-up connection.
  • Author
  • Model page created by Dirk Bladt. See "Data change" for further contributors.

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