• Country
• Great Britain (UK)

• Manufacturer / Brand
• Pye Ltd., Radio Works; Cambridge

• Year
• 1929/1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 77439

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

• Number of Tubes
• 5

• Valves / Tubes

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 2 & 108 & 9 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Portable 25C - Pye Ltd., Radio Works;

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 15.5 x 15 x 7.5 inch / 394 x 381 x 191 mm

• Notes

• Two aperiodic HF stages, two transformer-coupled LF amplifiers. Single-dial tuning with reaction. Uses P215 valve in the last stage.

  Grid bias battery 9 volts. Provisions to connect a special AC battery eliminator, avaible at 5 GBP.

  This model differs from model 25B in the design of the control panel, and the use of a variable condenser for aerial coupling.

• Price in first year of sale
• 23.04 GBP

• Source of data
• Radio! Radio!

• Mentioned in
• Wireless World (The), London (WW, 79) (October 30th, 1929)

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

• Other Models

• Here you find 620 models, 476 with images and 342 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Pye Ltd., Radio Works; Cambridge