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  #34  
Old 12th December 2020, 11:15 PM
colin.hepburn colin.hepburn is offline
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Join Date: Jan 2006
Location: Newtonhill Aberdeenshire
Posts: 2,721
Default Re: 5U4G substitution

Hi all
Yep, when I did the 6D22S upgrade in my JE. Labs single-ended Amp I was also talked through it by our Dr. John Caswell and Richard thank guys it’s the same circuit like the one described here. but using an RC. CL.CL.RC.filter supply. And I Can say with confidence it's reliably as well I've never had any fails with these I remember buying a stash of 12 valves at the time as backups and I am still using the first pair I fitted in the amp today. some 7/8 years later a recommended upgrade for all the amp suggested here'

The only error I made at the time was to use the top Cap for the 807valve which were to lose and needed the contact nipped up but these were replaced with the correct sized ¼ inch type here’s a link for the top cap I have
https://www.ebay.co.uk/itm/10X-1-4-g....c100227.m3827
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Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s
Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2


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Last edited by colin.hepburn; 12th December 2020 at 11:26 PM. Reason: my Spelling again
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