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 Receiver of the Week
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 Return to top of page · Post #: 1 · Written at 6:17:13 PM on 2 November 2016.
Labrat's avatar
 Location: Penrith, NSW
 Member since 7 April 2012
 Member #: 1128
 Postcount: 371

Why does the receiver of the week have a 5AS4 in it?
I am led to believe that a 5AS4 would be bad for any valve radio.

Wayne.


 
 Return to top of page · Post #: 2 · Written at 6:49:23 PM on 2 November 2016.
MonochromeTV's avatar
 Location: Melbourne, VIC
 Member since 20 September 2011
 Member #: 1009
 Postcount: 1182

I've made the same query about this radio before. From memory I think Brad replied that the valve line up was based on how this set was found.

This Radio of the Week is a Tasma 1002 and is most a likely post-war model. The correct valve is a 5Y3G or GT.

A 5AS4 will work fine in place of a 5Y3G, but the higher filament current could stress the power transformer.


 
 Return to top of page · Post #: 3 · Written at 8:06:47 PM on 2 November 2016.
Brad's avatar
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7300

I've made the same query about this radio before. From memory I think Brad replied that the valve line up was based on how this set was found.

That's about the size of it. There's three or four radios featured that require updated information, based on the set's original specifications rather than how the set was found.

The 1001 does work with the 5AS4 but yes, the 5Y3G is the right valve. That said, I haven't powered up this set for a long time, more than ten years it'd be now, and probably closer to 15. It would require recapping before use these days.

In the new year many of the ROTW radios will be renewed with photos and information on other sets. Rather than update inaccurate information it'll simply be replaced.


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A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 4 · Written at 8:40:38 PM on 2 November 2016.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6686

In the new year many of the ROTW radios will be renewed

On a tangent: how is the DIY image upload project going?


 
 Return to top of page · Post #: 5 · Written at 9:31:45 PM on 2 November 2016.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5254

I have a habit of photographing the radio's that traverse the workshop bench that are really good, not just the insides as a weapon against, senior moments, or to show the disaster it was, after some Monkey got at it.

An odd few have appeared in "Vintage Radio" in Silicon Chip". I recently sorted out a Philco BC-221-N Frequency Meter if you want something different.

No way would you attempt a repair on this other than a valve sub in battle conditions if it broke down. Germans had a better idea with a lot of there stuff, interchangeable modules, they could be fixed, behind the lines, while the radio could be quick fixed in the lines.


 
 Return to top of page · Post #: 6 · Written at 10:30:14 PM on 2 November 2016.
Brad's avatar
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7300

On a tangent: how is the DIY image upload project going?

At this point in time it is about 95% complete. I think it may make it to the starting blocks before Christmas but I'll be pushing it as I am working six days a week at the moment and have been for some time. Back to five days a week soon though.

Germans had a better idea with a lot of there stuff

To be honest I think they would have had a chance at winning WWII if they'd have left the Russians alone. A lot of their industrial ideas came out of being war-ready unfortunately, including basic ones like freeways and air-cooled cars.


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A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 7 · Written at 12:10:44 AM on 3 November 2016.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5254

Would agree: They actually could have produced a better tank by reverse engineering the more superior (when built) Russian T34, by just using better engineered parts.


 
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