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T2 {Mundorf} cracking sound on switch-off

T2 {Mundorf} cracking sound on switch-off


I have just built the above unit. It is fed with a 30Vdc supply. The unit "cracks" when it is turned off.

How to remedy this?

hi, it's hard to tell based on this information. could be the tc2000 or u4 chip. Did you do any mods or have other problems? Contact us if no solution.
I had a simular proplem with my T1 when my SMPS was set at the default voltage output. Dialed the voltage down and the problem seemed to have went away.
spoke too soon.
my problem came back... any suggestions?
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