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Chip Amps Amplifiers based on integrated circuits

BPA300 mono block finished and measured
BPA300 mono block finished and measured
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Old 31st March 2019, 11:46 PM   #301
Wolletje is offline Wolletje  Netherlands
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Join Date: Apr 2018
Location: Nieuwegein
Hi,
Sorry for that. I do not know how to delete this picture item. It was proud and put a picture from one working test setting. Today I made the second circuit. It does not work at all. DC setting cannot change and 1= -1.6mV (negative) 2=0.5mV 3=-1.6mV (negative)
Total different to the first one.
I am afraid that 2 (neg) or one the positive LM3886 fails/broken. I think try to desolder these all and put new one's.
With regards Frits
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