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Old 14th February 2004, 10:32 PM   #1
diyAudio Member
Join Date: Feb 2004
Location: San Francisco, California
Default Hitachi comp. X-ref.

I have been unable to cross reference a pair of old Hitachi transistors #'s (K175) and (J55). Any specs. on these would help enable me to find a substitute as well.
Thanks, Cole Johnson
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Old 15th February 2004, 02:49 PM   #2
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Join Date: Jul 2003
Location: Newcastle, Australia
These are Mosfets 2SK175 and 2SJ55, and not being made any more. They are 180V, 8A, 125W devices and substitutes could be BUZ901 and BUZ906 (200V) or BUZ900 and BUZ905 (160V).

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