• Country
• Great Britain (UK)

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

• Year
• 1955 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 145730

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

• Number of Tubes
• 2

• Valves / Tubes
• ECC40 ECC40

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: PF91A - Pye Ltd., Radio Works;

• Notes
• Pre-amplifier, matches power amplifier model P91.

• Price in first year of sale
• 12.60 GBP

• Source of data
• -- Schematic

• Circuit diagram reference
• Radio and TV Servicing books (R&TVS) book

• Mentioned in
• Wireless World (The), London (WW, 79) (Vol. 60, July 1954, p. 353.)

• Author
• Model page created by Keith Staines. See "Data change" for further contributors.

• Other Models

• Here you find 629 models, 485 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