Left Channel Producing looping heartbeat clicking sound like a clock

gabu840 · 1065

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Offline gabu840

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on: August 21, 2018, 02:15:09 PM
Hello Everyone,
My amplifier(Sex2.0 with C4S Upgrade) is producing Pumping Heart-Beat sound from left channel in a continuous loop, also sound is coming but staggered.
Please suggest what things do I need to check, could it be :
1) Ground Issue
2) Supply Issue
3) Capacitor Issue

Please support to pin point exact root cause of this problem. I have checked the tubes via Interchanging them, both are working fine flawlessly.


Offline Paul Birkeland

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Reply #1 on: August 21, 2018, 02:37:51 PM
How are your voltage checks?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Doc B.

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Reply #2 on: August 21, 2018, 03:09:59 PM
Look over your capacitors to see if one of them may have been nicked by the soldering iron.

Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.

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