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 1926 Premium brand, model Allen 5 Rectaflex
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 Return to top of page · Post #: 1 · Written at 3:06:05 PM on 29 July 2020.
Simplex's Gravatar
 Location: Bathurst, NSW
 Member since 7 August 2008
 Member #: 336
 Postcount: 335

A friend has just taken possesion of this radio. Three variable capacitors and two rheostats on the front panel. Five valves, two in the r.f stage, a crystal detector and three in the audio stage.

I have not seen the radio.

Anyone with information as to where this radio was made and possibly a circuit diagram.

A interesting feature of this radio is its very early printed circuit board type construction, strips of copper held on a board by rivets.

Apart from the above I do not have any further details.

Thanks for any information.

 Return to top of page · Post #: 2 · Written at 4:17:11 PM on 29 July 2020.
Ian Robertson's Gravatar
 Location: Belrose, NSW
 Member since 31 December 2015
 Member #: 1844
 Postcount: 1895

Sounds like a pretty standard coffin radio of the period.

What looks like a crystal detector is probably a grid leak resistor, glass, held in clips.

Unusual to see only two filament rheostats.

A quick search finds this:


and this:


 Return to top of page · Post #: 3 · Written at 7:10:41 AM on 30 July 2020.
Simplex's Gravatar
 Location: Bathurst, NSW
 Member since 7 August 2008
 Member #: 336
 Postcount: 335

Thanks for this, will pay a visit to the owner of the radio and see if I can get some photos.

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