A couple of wood-cased radios from the 1940s

 Regentone Model AW66

  I was amazed how good the cabinet looked after applying scratch remover. This Regentone was built in 1947 proved by the information on the side of the smoothing condenser. Apart from a couple of odd knobs and a plastic-coverered mains lead, the set looks in original condition.

 

 Below, the smaller than expected chassis. The valves are all International Octal types from Brimar and Mazda. A 6K8GT frequency changer, 6K7 IF amp, a 6Q7GT audio amp/det/AVC and a 6P25 output valve. The rectifier behind the Mazda 6P25 is a Brimar 5Z4G. The loudspeaker is a mains energised type and conveniently is fitted with a plug so the chassis can be detached easily.

 

 

 Here are pictures of the set's labels. Opposite, I spotted this one on the underside of the cabinet. Below, the plate which usually tells you that Mr Marconi's tax has been extracted from the manufacturer on your behalf.

Bottom right is the label that was originally stuck to the chassis giving the number 2725B4, however stamped on the chassis is "682648" which I guess is the serial number. I think that some time ago when the set was still relatively new the original output valve, a 6V6 was swapped for the 6P25 currently fitted. The paper label may have been an identification code stuck in place by the repairer. A look under the chassis may reveal another new part?

 
   

 Below is the circuit diagram for the AW66. Click it to see the servicing information.
 

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 Mullard Model MAS292

 This rather battered receiver dating from 1948 has been resting at the back of my workshop for many years and must have been donated by a customer. I applied some scratch remover and it looks a little better than it did.

 

 

 Typical for the era it has Long, Medium and Short wavebands but would have been quite expensive as it includes an RF stage and a magic eye.

It also has a useful logging scale. If I'm not mistaken the dial readings are the reverse of most other sets.

Valves are EF39 RF amplifier, ECH35 mixer/oscillator, EF39 IF stage, EBL31 AVC/Detector and audio output, EM34 tuning indicator and an AZ31 HT rectifier and, if you scroll down a little, you'll see it has "470KC" stamped on the chassis (probably because the unofficial IF standard was 465 Kc/s).

 

 

 
 

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