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Old 11-15-2012, 11:11 PM
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pitch perfect pitch perfect is offline
chief tube tester
 
Join Date: Aug 2011
Posts: 315
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Quote:
Originally Posted by lesmarshall View Post
Turn on the amp on and when it starts buzzing, take a pencil with an eraser and gently tap each of the driver tubes with the eraser and see if the amount of buzz or volume of the buzzing changes in a any way. If so, it's most likely a bad or microphonic tube. If you don't hear any difference after having tapped all six driver tubes, try the same thing with the power tubes .
Certainly appreciate people giving advice/etc to this customer-

But under NO circumstance should you ever tap a tube. Especially power tubes. It can actually cause damage to the delicate innards.. Tapping a tube will, of course, amplify the tapping. This won't tell you anything. A microphonic tube would be noisy without any assistance from a pencil eraser.

Typically service issues are dealt with by the Dealer who sold the product and/or Tone Imports. If that is not possible or if it is something that requires further assistance by Shindo-San, it is simply sent to Japan.

International Express shipping is a very straightforward easy process at USPS, btw. It typically takes less than 5 days via USPS/EMS service. Additiionally, Shindo is quick and decisive with repairs

-M
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