Seyon 1937 timber radio.
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Location: NSW
Member since 10 June 2010
Member #: 681
Postcount: 1256
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I can but my radio doesn't have the original grill cloth, and the chassis was got going again but was rusty so I killed the rust and painted it with red primer and silver paint. Blush - first resto.
I do have a photo of the cabinet of another model with identical appearance, off the net. I also have a Brian Smith reproduction of the 1938 catalogue with a very good monochrome engraving -
https://vintage-radio.com.au/home.asp?f=2&th=112&offset=1
I don't know if these images would present any sort of copyright problems as they are not my work.
I have never joined Radiomuseum, but I think that the contribution requirements have been eased. Will look at it again.
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6688
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I have never joined Radiomuseum, but I think that the contribution requirements have been eased.
In any case, member Sirwin can upload any photos which are donated with appropriate permission.
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Location: NSW
Member since 10 June 2010
Member #: 681
Postcount: 1256
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PS in the link, mine is the 830Q. The photo I have is of the 630Q.
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Location: NSW
Member since 10 June 2010
Member #: 681
Postcount: 1256
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I can't find the STC 630Q photo so will give the photos for Radio Museum a rain check.
Have been digging out old notes, memories and photos for my Taylor Valve 45C Tester to be of use to the other owners. Hope to post a pdf or maybe pdfs. Have already taken a break off that to write the aerials and earth terminal story in post 14 above.
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Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5257
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The Seyon I fixed was of English origin. Often the primary of the antenna was actually "floated" as often sets were not grounded to the mains. That meant no other way to get a good RF ground. Often the mains earth was fairly dirty anyway. Many American "hot chassis sets" had a line cap to Neutral (perhaps, as two pin plug can be reversed) to provide an RF ground. Options are greater if the antenna primary is actually an isolation transformer. Most domestic sets were designed for a long wire antenna of 25 feet.
I do have an RCA document related to antenna length & frequency & it does show the two wire antenna. ARRL handbook is useful for antenna questions.
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Location: NSW
Member since 10 June 2010
Member #: 681
Postcount: 1256
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The variations are too many to list and sometimes the circuits were not clear enough to tell. I should have mentioned that many but not all circuits showed a 10kOhm static bleed to earth somewhere in the aerial circuit.
ARTS&P D (1937) radios are not mentioned in hws website:
http://www.hws.org.au/RadioHistory/manufacturers/Seyon.htm
and it only covers up to 1935. In any case most listings don't have a valve lineup.
The date conundrum, together with the observation in a previous post that it looks like a Radiola chassis warrants investigation, but the 80, 42, 75, 6U7, EK2G lineup isn't represented in hws AWA section.
Maybe a Seyon dial is grafted onto something else if Seyon didn't manufacture after 1935. A photo of the complete chassis may be revealing.
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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STC830 as I mentioned before this radio is post depression and pre world war 2. The case is very similar to a wooden crate that I have seen many of. Although it's well built and nicely presented it may be a bitza put together cheaply to sell. As I said before Astor did build some of their consoles out of old packing crates in the early 30s. Maybe this is what's happened . I love this set it really has some presence.
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Location: NSW
Member since 10 June 2010
Member #: 681
Postcount: 1256
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"I love this set it really has some presence."
It certainly sits four square and has nice grain figuring.
If it is a bitza, it could be a kit too.
Reigniting the terminal issue, do you know what the terminal under the pick up terminals is for?
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7307
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Document uploaded to Post 14.
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...
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Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5257
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The stencil on the STC 236 on my bench is smaller than the Seyon it looks more the size of the Beville. The STC had four spring clips & provision for six: All were broken. HMV did change one of their sets IF (and the circuit) to a Philips valve during the War as WD scarpered off with the AWA equivalent.
What is worthwhile is to update the number valves to what they became in octal. E.g. #58 ended up with a heater & base change & became 6D6 then 6U7 with a base change, in several cases the valves numbers changed but the HV circuit did not, as they were essentially the same valves with different heaters & bases,
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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I'm guessing if you disconnect that pin then you disconnect the radio from the amp section
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Location: NSW
Member since 10 June 2010
Member #: 681
Postcount: 1256
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Looked through the 1937 circuits again - Astor did use such an arrangement on several sets so that ties in with that heritage.
In some cases AGC taken out on RF valves.
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Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5257
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That is a link pin at the top which couples RF to Audio. The lower one is likely ground but, if its back biased perhaps not. It depends on the thing being designed for a Magnetic or Crystal cartridge?
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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Reigniting the terminal issue, do you know what the terminal under the pick up terminals is for?
Its marked Phono so I believe you remove that pin to disconnect the rf and then you connect the phono.
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