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winged c 6550c is not good for ref 5se??

I ordered 3 of svetlanan SED winged C 6550c from 'Upscale audio' last week and it was not shipped until today, so i call them to find out what is going on here.
They told me they didnt send it because " This tube is not going to work well with your audio research amp and it will failed almost every time".
Is it right?
brandon1103

Showing 3 responses by tsushima1

tsushima1
1,165 posts
 
For anyone looking to step up from the stock Sovtek whilst keeping their Ref 5SE closer to ARC factory voicing than NOS Tung Sol's I would recommend NOS General Electric 6550.
tsushima1
1,165 posts
 
@MisterN, hopefully you managed to source the GE testing to New spec? Should you contract the rolling bug I would also recomend an early 60's solid grey plate, Have Fun .
tsushima1
1,165 posts
 
@Jtimothya,

Of course ARC wouldn't recomend the use of Vintage Valves in their equipment, they don't retail them !

I am rather surprised at your findings with regard to GE6550!!! Which I have never yet found applicable to the several GE's that I have rolled as the regulator in a Ref5se, and for my part leave the stock Sovtek sounding a tad etched and sterile in comparison.That said I have no experience of the same comparison in a Phono 2.

Are you certain that you tried an 100%, or close to, emissions example?
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