• Country
• Great Britain (UK)

• Manufacturer / Brand
• Cossor, A.C.; London

• Year
• 1937–1945 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 273851

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

• Number of Tubes
• 4

• Valves / Tubes
• 506BU MVS/Pen 41MH 41STH

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 110; 200; 220; 240 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Ganging Oscillator 3343 - Cossor, A.C.; London

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 600 x 290 x 163 mm / 23.6 x 11.4 x 6.4 inch

• Notes

• Ganging oscillator.  Wavebands: 7.9-20MHz, 2.9-7.9 MHz, 1- 2.5 MHz, 350-990KHz, 40-350 KHz.  Output cw (fm with no input), am internal 400 Hz, am external, fm external (recommended 25 Hz) deviation up to +-25KHz.  400 Hz output also available.

  Beat frequency oscillator.  The 41MH is the fixed frequency oscillator, modulated.  The 41STM is the variable oscillator and mixer.  The MVSPEN is the reactor valve on fm, the audio oscillator on internal am, or the modulation amplifier on external am.

  The terminal marked X is for fm, modulation input, from an oscilloscope timebase output.  The oscilloscope Y input is connected to the reciever under test, from the if output or detector stage.  The oscilloscope then shows the reciever passband, with frequency as the X axis.

• Price in first year of sale
• 20.00 GBP

• Mentioned in
• Original price Information from previous owner

• Literature/Schematics (1)
• -- Schematic

• Literature/Schematics (2)
• calibration chart

• Author
• Model page created by David Jones. See "Data change" for further contributors.

• Other Models

• Here you find 326 models, 250 with images and 194 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Cossor, A.C.; London