| Re: Demagnetizing Tung Sol 6550, Penta KT88s [message #96529 is a reply to message #96527] |
Thu, 16 March 2023 22:17  |
positron
Messages: 97
Registered: May 2020
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Viscount |
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Are the Penta tubes manufactured by Psvane Bruce?
I do not know how old these tubes are.
Supposively not many hours.
Metal band around bottom is hanging/extremely loose on one tube.
No red plating is occuring. I am running the idle plate dissipation
around 30 watts, in triode mode, so includes the screen, and the
output is around 20 watts. So not a real test of the quad given your information.
The bass is shy to me, midrange sounds great though,
but I can't pull the trigger on them. They are loaned
to me, so not out money for this test.
Cheers and thanks for the info Bruce.
pos
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