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 Van Ruyden, Early 30's Any information welcome
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 Return to top of page · Post #: 1 · Written at 2:43:22 PM on 11 February 2017.
JamieLee's Gravatar
 Location: Clare, SA
 Member since 27 March 2016
 Member #: 1894
 Postcount: 508

I bought this lovely console from PA Man and after a recap, it has a new lease of life, A great rich sounding and loud radio. I have a problem with the volume pot being NVG. At zero the set is at what I'd estimate as half volume. It is a small pot and does not look original.

The Valve lineup is as follows. 80 (rectifier) 42 (this has been replaced with a 6F6G with the updated valve socket), 6F7, and 6A7

If anybody has ny knowledge of this lineup and possibly a schematic I would be very grateful. A member here has offered me a replacement NOS pot at a very reasonable price, however I need to know the Ohms?

Thank you very much if you are able to help!

Cheers.

Unknown Radio
Unknown Radio
Unknown Radio
Unknown Radio


 
 Return to top of page · Post #: 2 · Written at 4:19:30 PM on 11 February 2017.
Johnny's avatar
 Location: Hobart, TAS
 Member since 31 July 2016
 Member #: 1959
 Postcount: 431

There were a number of radios that were designed in such a way so that the volume could not be turned right down.
Perhaps this is one of them.
Need to look at circuit.
It may have been a very early safety feature, so you would not forget to turn them off.
JJ


 
 Return to top of page · Post #: 3 · Written at 2:28:17 PM on 12 February 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1619

From my limited experience your Van Ruydan would be very similar to my 1934 EMMCO. The ohms for the wire wound pot should be 5k. You will find a schematic for a 1938 Weldon in the 2nd ORSM which is identical to my EMMCO. If you want a copy please email me and I will send it. Or I will send it when I get home from work. If its a 5k Pot that's needed then either myself or Steve can supply you with one.


 
 Return to top of page · Post #: 4 · Written at 6:36:29 PM on 12 February 2017.
Garyoz's avatar
 Location: Perth, WA
 Member since 19 November 2008
 Member #: 381
 Postcount: 240

I think the spelling is Van Ruyten. I have a B14 Radio in my collection.

There is a story here: http://www.hrsasa.asn.au/docs/file%205.pdf


 
 Return to top of page · Post #: 5 · Written at 6:59:46 PM on 12 February 2017.
JamieLee's Gravatar
 Location: Clare, SA
 Member since 27 March 2016
 Member #: 1894
 Postcount: 508

Thank you Carl, yes I think it will be 5k, Steve in sending me one, the 38 Weldon looks very similar, except is a 5 valve, whilst mine has

only four, after the 80, 42 nd 2A, are different, but the power supply, resistors and capacitors seem familiar, the van Ruyden has a lot

of resistors that appear to be merely wire wrapped around flat cardboard like insulators, big Chanex paper caps which I replaced.The

circuit is fairly primitive looking, but the radio is a good loud belter, with a good tone! The chassis is one piece folded steel, front top and

rear, with wooden sides. The Weldon has a 6C6 and a 5D6, where my van Ruyden has one 6F7, supposedly doing the job of both of the

afore mentioned. I'll study the valve data of all 3 and see if I can figure how that works... I'm convinced that 5k ohms would be the most

logical choice of pot. Cheers.

Jamie.


 
 Return to top of page · Post #: 6 · Written at 7:39:44 PM on 12 February 2017.
JamieLee's Gravatar
 Location: Clare, SA
 Member since 27 March 2016
 Member #: 1894
 Postcount: 508


Ah, it appears that the 6C6 is a valve very suitable for Automatic Volume control, which the Weldon, being a later 30's set would likely

employ and the 6D6 working with it to do what the 6V7 as a combined Triode- Pentode could manage on it's own with no AVC.

I'm fairly sure my Van Ruyten (I believe you are correct Garyoz) is from 1933-1934, as it originally had a 42, which is the four pin version

of a 6V6G, which superseded the 42 around 1937=8 apparently. Mine has had the socket replaced to accommodate the octal version.


 
 Return to top of page · Post #: 7 · Written at 7:51:30 PM on 12 February 2017.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6172

Photos, please.


 
 Return to top of page · Post #: 8 · Written at 11:28:55 AM on 13 February 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1619

Jamie if you need any of the old 4 pin valve sockets I have heaps of them here .


 
 Return to top of page · Post #: 9 · Written at 9:30:25 PM on 13 February 2017.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 6574

Photos uploaded.


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

 
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