On Sun, Nov 3, 2024 at 03:52 AM, Richard Lee wrote:
The fact that cleaning the PCB solved the problem, at least temporarily, suggests it is muck on the PCB.? If there are no EVIL polystyrenes, it might be worth doing this again; perhaps in an ultrasonic bath.
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I somehow have a bad feeling about the capsule connection. The red one in particular seems old, brittle and slightly bent. I checked the cable for breaks with the DMM, but unfortunately could not find any fault.
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I would also like to take a look behind the cover on the backside of the capsule.
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I will do another long-term recording test tonight. Tomorrow I'm visiting someone who may have an ultrasonic bath.
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Many thanks!
