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21st July 2004, 03:31 PM
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#1 |
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diyAudio Member
Join Date: Jul 2004
Location: lancashire
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Replacing Tubes
Hey im quite a beginner with tube amps.
i own a engl screamer 50 combo with the following specs: 50 watts classA 2x GL6GC matched set 1x 12ax7 FQ grade 2x 12ax7 selected 1x 12ax7 standard celestian v80 speaker Both the Gl6GC's are broken and im wondering how i go about replacing them.. am i best just buying the same model tube from groovetubes/sovtek or can you recommend something better? and will i need to rebias my amplifier? thanks |
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21st July 2004, 11:23 PM
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#2 |
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diyAudio Member
Join Date: Apr 2004
Location: Plainsboro, NJ
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Tube amps with adjustable bias need to be reset periodically, even if the O/P tubes are not replaced. Rebiasing is mandatory when the O/P tubes are replaced.
The "best" current production 6L6GC is the SED (Svetlana) made in the St. Petersburg (Russia) plant. The tubes are marked with a "flying C" logo. If you can't find a reliable UK or European source for the tubes, try Ned Carlson at Triode Electronics. Triode Electronics: www.triodeelectronics.com
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Eli D. |
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