Radio Unit BTS

Lowther Manufacturing Co; Kent

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  • Year
  • 1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 340725

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Powered by external power supply or a main unit. / 4, 250 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case, TUBES VISIBLE
  • from Radiomuseum.org
  • Model: Radio Unit BTS - Lowther Manufacturing Co; Kent
  • Shape
  • Chassis only or for «building in»
  • Notes

  • Radio Unit, BTS

    The BTS is a superheterodyne circuit, designed to take the place of BT2, when conditions make that type of tuner impracticable.

    Consists of an aerial band-pass coupling to the control grid of an MX40 as the first detector and frequency charger of conventional circuit design.

    In the anode of which, an IF transformer of the 8 kHz type couples into a VMP4 acting as the intermediate amplifier.

     A tapped primary IF transformer couples this valve into the detector and AVC diodes, the remainder of the circuit is as BT2, except that an IF filter circuit is employed in the detector diode

    Power supply required:  20 mA, 250 volts; 4 volts at 3.6 amps for heaters, etc.

    Controls: Tuning, Tone, Volume, Long, Medium, and Gram switch.

    Connections: Speech and Earth - two-pin socket, HT and Heaters - 5-pin plug and socket.

  • Price in first year of sale
  • 11.00 GB £
  • Mentioned in
  • - - Manufacturers Literature (Lowther Voigt Radio, Season 1936-37, Page 16.)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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