Hello,
I own a nice hiwatt sa112. It's a combo, with the same schematics than the head hiwatt dr504.
I was playing it fine, then suddenly...
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Today, 05:03 PM
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Greetings,
I have an old PA amp that uses 6SJ7 preamp tubes that I’m tweaking for guitar use. It has three essentially identical channels....Yesterday, 07:00 PM -
Hey folks,
I managed to eliminate the hum by replacing the main filter caps, but now I'm getting heavily distorted output. Traced it down to...Yesterday, 06:55 PM -
This one has me puzzled. Currently I have all new tubes in the amp, 12ax7 and el34. The last time I worked on this amp was 5 years ago, and it's been good...Yesterday, 03:19 PM
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To start I hope that a good amplifier tech can help me out here to eliminate any confusion I would love to go through the amplifier with you on the phone...04-11-2025, 11:05 PM
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Hello,
I own a nice hiwatt sa112. It's a combo, with the same schematics than the head hiwatt dr504.
I was playing it fine, then suddenly...Today, 05:03 PM -
Greetings,
I have an old PA amp that uses 6SJ7 preamp tubes that I’m tweaking for guitar use. It has three essentially identical channels....Yesterday, 07:00 PM -
Hey folks,
I managed to eliminate the hum by replacing the main filter caps, but now I'm getting heavily distorted output. Traced it down to...Yesterday, 06:55 PM