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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Ashton GA80 guitar amp (Australia)
RoHS date of introduction for Australia ?
Anyway 1/4 inch i/p socket too weak even for domestic use , breaking up in a few years ( within RoHS regime), no obvious datecodes except main electros seem to be 2000, otherwise maybe 2004 or 2005 IC dates. No-name flimsey junk , the type with 2 insulated change over contacts. On trying to work out the functions, apart from the tip contact/grounding setup there is a line to one of the isolated switches that grounds at plug inserted and o/c when removed , it goes DC connected to the base of a pnp transitor - function ? |
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