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 That baby Tasma on the front page........
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 Return to top of page · Post #: 1 · Written at 3:44:19 PM on 17 January 2010.
6A8G's Gravatar
 Location: Wellington, NZ
 Member since 24 July 2009
 Member #: 517
 Postcount: 58

Looks Gorgeous! Just wondering why a 5AS4 rectifier? This valve would surely have been expensive & overrated for a such a radio?

Just a thought....
Kind regards,
John.


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6A8G.

 
 Return to top of page · Post #: 2 · Written at 11:35:41 PM on 17 January 2010.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 6174

Chances are that the original valve was the mighty 5Y3G however this is the valve that came with the set when I bought it in 1991. Apart from a general cabinet tidy-up, this radio is still yet to be fully restored after 19 years on display. When this does happen I will replace the rectifier, detector and mixer with the correct types. I believe the valve line-up should be 5Y3G, 6A8G, 6G8G and 6V6G.


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A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 3 · Written at 11:18:42 AM on 19 January 2010.
Sirwin's avatar
 Location: QLD
 Member since 10 April 2009
 Member #: 465
 Postcount: 101

Hi Brad,

If that model is a 1002 the correct valve line up is 6SA7GT, EBF35, 6V6GT, 5Y3GT. The circuit is in the AORSM 1947 P456.

Cheers,

Stuart


 
 Return to top of page · Post #: 4 · Written at 1:03:22 PM on 19 January 2010.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 4178

The only likely hassle from the 5AS4, is from it drawing 3A against 2A for a 5Y3's Filaments

Marc


 
 Return to top of page · Post #: 5 · Written at 3:35:35 PM on 19 January 2010.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 6174

Marc: Yes, the 5AS4 is quite a long valve with the filaments going almost the full stretch. Back at the time I bought this set I was still a bit green with valve types and believed that the shape of the cabinet was simply to accomodate the 5AS4 that came with the set.

Sir Win: I'll have to double check the model number but you may be right there.


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A valve a day keeps the transistor away...

 
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