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P5A

P5A; Roberts Radio Co.Ltd (ID = 2351223) Radio
 
P5A; Roberts Radio Co.Ltd (ID = 2351224) Radio
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P5A; Roberts Radio Co.Ltd (ID = 137486) Radio
Roberts Radio Co.Ltd: P5A [Radio] ID = 137486 640x649
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For model P5A, Roberts Radio Co.Ltd., East Molesey, Surrey, UK
 
Country:  Great Britain (UK)
Manufacturer / Brand:  Roberts Radio Co.Ltd., East Molesey, Surrey, UK
Year: 1946 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: ECH35 EF39 EBC33 AZ31 EL33
Main principle Super-Heterodyne (Super in general); ZF/IF 467 kHz
Wave bands Broadcast, Long Wave and Short Wave.
Details
Power type and voltage Alternating Current supply (AC) / 200-250 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 15 cm = 5.9 inch
Power out
from Radiomuseum.org Model: P5A - Roberts Radio Co.Ltd., East
Material Leather / canvas / plastic - over other material
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 300 x 290 x 210 mm / 11.8 x 11.4 x 8.3 inch
Notes Tragbar mit Drehteller.
The P5A radio was released April 1946 Price £16 16s 0d + £3 12s 3d purchase tax.
Collectors' prices  
Mentioned in The Wireless and Electrical Trader August 23rd1947

Model page created by Gaby + KH Mallinger. See "Data change" for further contributors.



All listed radios etc. from Roberts Radio Co.Ltd., East Molesey, Surrey, UK
Here you find 76 models, 72 with images and 43 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Roberts Radio Co.Ltd: P5A
Threads: 1 | Posts: 1
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roberts: P5A;
Michael Goscombe
15.Mar.15
  1

As I usually do, when repairing vintage radios, I replaced a large number of waxed paper capacitors in this P5A with modern LCR or similar, axial capacitors of the nearest available value, e.g. replacing an 0.05uf 350v paper capacitor with an 0.047uf 400 or 630v. type.  Because the Rectifier valve heater was open circuit and the reservoir & smooting capacitors were leaky, I replaced the former with a !n4007 silicon diode and series resistor, wired across the valve base, leaving the valve in situ to preseve tha above chassis appearance.  I also replaced some burnt resistors, and the smoothing choke, which was open circuit, using a choke salvaged from a scrapped radio.  For the reservoir & smoothing capacitors I used two axial eklectrolytic capacitors mounted on the chassis underside, wired directly to the rectifier output and smoothing choke respectively.  Some of these items should be visible in my photographs.

After completing the repair, and cleaning the dial, knobs ,etc., the radio was tested and run for many hours, working perfectly.  Here in Oxfordshire I was able to receive some 6 or 7 MW stations at good strength, plus BBC R4 on LW at good strength, using the internal Frame aerial only.

 
Roberts Radio Co.Ltd: P5A
End of forum contributions about this model

  
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