Do you know this console Radio?
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Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5523
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AWA early used dark blue painted chassis and Amplion speakers.
I have worked on a few of those including a set that was either a special, or a prototype. Never have I seen a set from the thirties that could disgrace many, sets that came after it. Output was a 6A6 Twin Triode.
They did have a habit of also painting the cans as well and did manufacture under different brand names.They also used transfers that came off & stamped the chassis on the top of the chassis, RH corner in some Hotpoints.
STC chassis was normally a hammer tone gold.
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Location: Newcastle, NSW
Member since 25 February 2014
Member #: 1516
Postcount: 30
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GTC, It is in the woodgrain pattern where I see that W. Well it looks like a W But it may not mean that its is a W.
The pattern is unique compared to other consoles I have seen.
Sadly the faceplate is all plastic (Is it plastic?) and needs a polish if that can be done of course . The dial behind it is glass but sadly when I disturbed the glass the print started to come off. Behind the glass there is another plastic scale (That is warped) that shows letters through a small window when you turn the dial.
Marcc, For a bit I was thinking it was an AWA, The cans and everything else is not painted. I am going to give it a clean to see if I can find anything that can help ID this Radio. I have seen in many others there is a tube layout but due to this being stored in a shed for many years it has lost all that.
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6844
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It is in the woodgrain pattern where I see that W.
Yes, I see that but that's a feature of the cabinetry, not the circuitry.
Sadly the faceplate is all plastic (Is it plastic?) and needs a polish if that can be done of course.
Dunno what that one is made of but I have managed to clear up a badly fogged plastic dial cover on my Krielser Duplex with Autosol liquid car polish.
The dial behind it is glass but sadly when I disturbed the glass the print started to come off.
A common problem with such dials. There are people who can reconstruct dial lettering using computer graphics, but they need a good copy template to work from.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7490
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AWA early used dark blue painted chassis and Amplion speakers.
About 20 years ago I heard a rumour that AWA made chassis for many of Reliance's models. I've never been able to verify either way though.
On another note, when I do an image search for Reliance consoles a few models are shown but none with the same shape of the escutcheon, which looks more like the Heinz spaghetti logo.
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A valve a day keeps the transistor away...
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6844
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About 20 years ago I heard a rumour that AWA made chassis for many of Reliance's models.
It wouldn't surprise me. Over its life AWA made stuff for many other manufacturers.
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Location: Newcastle, NSW
Member since 25 February 2014
Member #: 1516
Postcount: 30
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Thanks for all the good information. I am getting a better understanding of these old radios.
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Location: Newcastle, NSW
Member since 25 February 2014
Member #: 1516
Postcount: 30
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Location: Newcastle, NSW
Member since 25 February 2014
Member #: 1516
Postcount: 30
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Hi all,
Back with some progress, but sadly without a schematic it has not been easy.
After testing and replacing capacitors and resistors I came across a variable 15k power resistor that was open circuit, it seems to be divided into three parts. Which seems to be 3.9k, 3.6k, 7.5k . With that said I am asking what wattage does the replacement resistor needs to be and can I use three separate resistors in series?
Regards,
James
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Location: Newcastle, NSW
Member since 25 February 2014
Member #: 1516
Postcount: 30
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6844
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I'd lost track of this thread.
Sounds pretty good in the (very dark) videos. I can hear a bit of electronic "hash" in one of them, possibly caused by something in your house, e.g. compact fluorescent bulbs.
Looking back at your mention of a 15K resistor, I'm guessing that's a tapped wire-wound type in the power supply?
If so, then you'd be lucky to find a like-for-like replacement in working order, so using modern individual resistors soldered onto tag strips is the solution. As for wattage required, that's usually determined by knowing the current (P = I*I*R), but a good guess may be 50 watt wire-wound cement types.
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Location: Newcastle, NSW
Member since 25 February 2014
Member #: 1516
Postcount: 30
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Yes it does seem to be interference, Being in units I suspect it is the CFL and the smoke detector that is below plus my own above the radio.
I have since moved the radio and using an outside antenna source with much better results.
The 15k resistor is on the other side of the chassis which is linked to an IF or two and the 6A7 and the 6D6.. I currently have a series of 5 watt resistors which appear to be ok, not getting too hot as I can hold my finger on them.
The problem I have is finding the right type of resistors , I have found some on eBay from china but I am not sure I should trust those?
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6844
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EVATCO in QLD sells the 10 watt cement type, but in a limited range of resistances if their new format website is correct:
http://evatco.com.au/product-list/resisters/resister-cement/.
I've had no problem with high wattage resistors I've bought on eBay from China . That's probably where most of them are made anyway!
As I recall from school, 2 watts of heat is too hot to touch, so I guess yours are running below 2 watts of dissipation.
PS: Your videos describe the unit as a radiogram, but it lacks a gramophone so it's not a radiogram. It's a console set.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7490
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As I recall from school, 2 watts of heat is too hot to touch, so I guess yours are running below 2 watts of dissipation.
It is. When we used to fire up banks of resistors at tech, when I was doing my trade course, the resistors would get so hot on their mountings they could almost boil water. This was all at extra-low voltage too 24/41.5 volts.
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...
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Location: Newcastle, NSW
Member since 25 February 2014
Member #: 1516
Postcount: 30
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6844
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If the 5 watt resistors are doing the job, then no need to buy 50 watt ones. I only mentioned them to cover all bases as I don't have the applicable current value.
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