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Post subject: Hot Rod Deluxe loud oscillation
Posted: Fri Apr 16, 2010 4:47 am
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when I turn my amp on it emits a loud fixed pitch square waveish sounding tone

my suspicion is its a microphonic power tube as it seems to be triggered when I tap the suspected tube

I have replaced the tubes before should I go right ahead and try that or has anyone else had common symptoms and found it to be a different problem?


thanks


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Posted: Fri Apr 16, 2010 12:32 pm
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Just replace the pre-amp tube that has gone microphonic and it should be ok!

CC

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Posted: Fri Apr 16, 2010 12:36 pm
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Celtic Cyclonus wrote:
Just replace the pre-amp tube that has gone microphonic and it should be ok!

CC


seems to be a power tube but I'm due a retube so ill do them all :wink:


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Posted: Fri Apr 16, 2010 4:25 pm
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snufkin wrote:
Celtic Cyclonus wrote:
Just replace the pre-amp tube that has gone microphonic and it should be ok!

CC


seems to be a power tube but I'm due a retube so ill do them all :wink:


Sorry buddy I didn't read it right! :oops:

I recommend JJ's. These amps sound their best with them. Been playing a DeVille for years.

Just my 2 cents! Best of luck!

CC

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Marshall 70's JMP Superbass 100w
Blackstar HT-5


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