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Portable 25B

Portable 25B; Pye Ltd., Radio (ID = 1999394) Radio
 
Portable 25B; Pye Ltd., Radio (ID = 2001221) Radio
 
Portable 25B; Pye Ltd., Radio (ID = 2001228) Radio
 
Portable 25B; Pye Ltd., Radio (ID = 2001238) Radio
Portable 25B; Pye Ltd., Radio (ID = 1999395) Radio Portable 25B; Pye Ltd., Radio (ID = 291146) Radio
Portable 25B; Pye Ltd., Radio (ID = 291150) Radio Portable 25B; Pye Ltd., Radio (ID = 1999396) Radio
Portable 25B; Pye Ltd., Radio (ID = 1999397) Radio Portable 25B; Pye Ltd., Radio (ID = 1999398) Radio
Portable 25B; Pye Ltd., Radio (ID = 2001218) Radio Portable 25B; Pye Ltd., Radio (ID = 2001219) Radio
Portable 25B; Pye Ltd., Radio (ID = 2001220) Radio Portable 25B; Pye Ltd., Radio (ID = 2001937) Radio
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Portable 25B; Pye Ltd., Radio (ID = 1999395) Radio
Pye Ltd., Radio: Portable 25B [Radio] ID = 1999395 933x984
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For model Portable 25B, Pye Ltd., Radio Works; Cambridge:
Front Pye 25B aus Bestand Das Rundfunkmuseum Cham
 
Country:  Great Britain (UK)
Manufacturer / Brand:  Pye Ltd., Radio Works; Cambridge
Year: 1928/1929 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: PM1HF PM1HF PM1HF PM1HF PM2
Main principle TRF with regeneration; 2 AF stage(s)
Tuned circuits 1 AM circuit(s)
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Storage and/or dry batteries / 2 & 108 & 9 Volt
Loudspeaker Magnetic loudspeaker (reed) generic.
Power out
from Radiomuseum.org Model: Portable 25B - Pye Ltd., Radio Works;
Material Wooden case
Shape Portable set > 8 inch (also usable without mains)
Dimensions (WHD) 16.25 x 16.25 x 8.5 inch / 413 x 413 x 216 mm
Notes

Two aperiodic HF stages, two transformer-coupled LF amplifiers. Single-dial tuning with reaction. Grid bias battery 9 volts.

Cabinet in polished walnut. Fitted with Pye Senior or Celestion cone speaker with reinforced membrane.

Net weight (2.2 lb = 1 kg) 30 lb (30 lb 0 oz) / 13.620 kg
Price in first year of sale 23.04 GBP
Mentioned in The Wireless World, London (WW, 79) (June 5th, 1929)

Model page created by Vinicio Massai. See "Data change" for further contributors.



All listed radios etc. from Pye Ltd., Radio Works; Cambridge
Here you find 574 models, 415 with images and 334 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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