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In Reply to: RE: Interesting... posted by Lew on November 06, 2014 at 12:40:03
per a suggestion i found here i use copper tape held secure with a tube damper.
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i overlap the copper and solder at overlap. seems to work well. THe electrical changes seems to add extension and detail to tubes.
ON smaller tubes (9 pin) i place the tape from the bottom to the edge of first mica sheet (bottom). Keeps heat dissipation up.
On EL 34s makes them sound more like a 6550.
should have added on power tubes one pin is connected to metal base,.hence the warnings on last run of GE 6550s. i dont connect this wire so an EL34 doesnt quite have the sharpness of the 6550
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