• Country
• Great Britain (UK)

• Manufacturer / Brand
• Bush Radio Ltd.; london

• Year
• 1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 77930

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

• Number of Tubes
• 4

• Valves / Tubes
• S4VA S4VA PM24M DW3_Mullard

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935

• Wave bands
• Broadcast (MW) and Long Wave.

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

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Power out
• 3 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: AC3 - Bush Radio Ltd.; london

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Dimensions (WHD)
• 13.5 x 18 x 13.5 inch / 343 x 457 x 343 mm

• Notes

• Bush´s first receiver. American "Cathedral" or "Gothic" style.

  A.C.  driven three-valve set with a band-pass input, one H.F. stage, and a screen-grid detector resistance coupled to a pentode giving 3 watts output to the moving-coil speaker. A choke filter output is used, and the speaker field serves as a smoothing choke. Volume control is obtained by variation of screen volts. 

• Price in first year of sale
• 17.00 Guineas

• Source of data
• Radio! Radio!

• Mentioned in
• Wireless World (The), London (WW, 79) (Aug 26, 1932, Page 191.)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 400 models, 333 with images and 239 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bush Radio Ltd.; london