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 Unknown wooden radio #5
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 Return to top of page · Post #: 1 · Written at 11:21:11 AM on 10 August 2016.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1094

This is the last of the unknown free-standing consoles. It's also the oldest radio in my collection, and the most expensive.

Valves: 24A, 47, 80

As you can probably guess, it's a regen circuit.

The chassis is sprayed brown, inside and out. There's not a speck of rust on it. The code: P7600 is stamped into it.

At the bottom is a metal plate from the seller. It says:

MAPLES PIANO WAREHOUSEMEN
Prahran - South Melb - Richmond - Brunswick - Carlton - North Melb - Albury - Wagga

The dial is 0-100 in a semicircle. You have to look through a tiny hole to see what number you've dialled up. There's a dial light behind it. The metal plate around the dial has the word METEOR stamped into it.

At the back are 3 antenna sockets. You need to change the connection depending on what part of the band you want to listen to.

The antenna coil originally was enclosed in a brown metal can. However the radio would barely pick up anything, so I removed this cover.

I turned it on last night, and for the first time used a really big antenna that's in the roof space. It picked up a number of NSW and interstate stations, although the volume wasn't very loud. For some reason I couldn't get 2CH no matter how much I tried, yet I could get Magic 882 Brisbane with no trouble at all. The selectivity is remarkably good. The sound is marred by various whistling noises, and it(this radio) interferes with other radios in the vicinity.

When I got this radio, back in November 2000, the power cord and speaker cords were completely rotted and so were replaced. Unfortunately the speaker is hard-wired in, without the benefit of a plug & socket, which makes working on it a pain.

This radio became one of my "experimenters", so now the circuit doesn't resemble the original much now.

Unknown Console Radio
Unknown Console Radio
Unknown Console Radio
Unknown Console Radio
Unknown Console Radio
Unknown Console Radio


One photo contains my hand-drawn schematic of the original set-up before I started fiddling. Another photo has a bunch of old parts I found, some of them may have come from this radio, but I don't know for certain. The black interstage transformers certainly didn't.

The dial light is wired across the 2.5 volt line, however a 2.5 volt globe burns out rather quickly and gets so hot that it has damaged one end of the dial. So I used a 3.5 volt globe, which solved the problems.

Does anyone have an idea of what brand and model this radio is, its age and other interesting facts?


 
 Return to top of page · Post #: 2 · Written at 9:58:09 PM on 10 August 2016.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1094

Thanks Brad. Smile


Edit:
Photo from above is missing.
Photo of old parts is upside down.

Can you fix?


 
 Return to top of page · Post #: 3 · Written at 10:38:01 PM on 10 August 2016.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 5300

The only console I can find with that line-up is the Stromberg Carlson 'Juniorette' of 1931.

In mantels there were Healing 201 of 1932, and Tasma 22 of 1931.


 
 Return to top of page · Post #: 4 · Written at 10:48:42 PM on 10 August 2016.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 5562

Photo of parts has been turned up. There's a limit of six images that can be submitted. Supplementary uploads are permitted however only under certain circumstances, such as following up on a restoration of a receiver - before and after shots.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 5 · Written at 10:59:53 PM on 10 August 2016.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1094

OK, didn't know about the limit. In future I'll restrict myself to 6.

Is there an issue with me linking to more shots that are external?


 
 Return to top of page · Post #: 6 · Written at 11:11:04 PM on 10 August 2016.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 5562

Is there an issue with me linking to more shots that are external?

Linking to more than six is fine. Avoid Photobucket if you can, They use special characters in their hyperlinks which are blocked by the anti-spam filter here and when posted they need modification to work correctly.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 7 · Written at 5:09:37 AM on 11 August 2016.
Wa2ise's avatar
 Location: Oradell, US
 Member since 2 April 2010
 Member #: 643
 Postcount: 729

QUOTE: It picked up a number of NSW and interstate stations, although the volume wasn't very loud. For some reason I couldn't get 2CH no matter how much I tried, yet I could get Magic 882 Brisbane with no trouble at all. The selectivity is remarkably good. The sound is marred by various whistling noises, and it(this radio) interferes with other radios in the vicinity.


Looks like a superregen radio. Whistling and interfering with other radios nearby are known side effects of this kind or receiver.


 
 Return to top of page · Post #: 8 · Written at 12:42:56 PM on 12 August 2016.
Garyoz's avatar
 Location: Perth, WA
 Member since 19 November 2008
 Member #: 381
 Postcount: 237

Here is a good article on Regenerative Receivers;

http://makearadio.com/others/regenrx2.php


 
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