Mark Bass , magic smoke, only 3 years old
Nutcase Kook is at it again
Worse air problem than that. The "baffle" is actually mu-metal plate
** The Kook see Mu-metal everywhere in his dreams.
the tip of the input jack is about an inch from the speaker line.
So another air flow mod for this, a full baffle directing air towards
the Zobell,
** Air cooling for the Zobel - must be a real first.
So perhaps internal HF howl-round was the problem.
** No **** Shylock.
The relay , now desoldered, was seriously buckled and burnt casing so
the contacts were jammed on. As the click/chirp noise had been like that
for a couple of months, 3 times a week use, difficult to believe the
problem was full on ultrasonic instability driven into 10 W of resitors
over the speaker line, all that time.
** Likely only took a minute or so to do the damage, following a short mishap with cables or plugs.
The Kook is so pig ignorant there is no explanation he can comprehend or accept.
..... Phil
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