Akai AM-A90 Amplifier , output mosfet transistors damaged, numbers 2SJ115 and 2SK405; these transistors are discontinued, what subs can I use?
To replace the Mosfet pair 2SJ115 and 2SK405, the closest pair is 2SJ200 and 2SK1529. Less close, but might substitute, are the pairs 2SJ201/2SK1530, or 2SJ440/2SK2467. Possible US sources for 2SJ200 or 2SK1529 include Nationwide (www.neiparts.com) or Audio Lab of Georgia (www.datadart.com), among others. If in Europe, try Borbely Audio (www.borbelyaudio.com).
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