Yamaha B-1 VFET replacement option

Sony, Yamaha, Sansui & JVC/Victor V-FET

Yamaha B-1 VFET replacement option

Postby MarkB » Sun Feb 14, 2016 12:23 am

I recently had my Yamaha B-1 repaired/restored which required replacement of two 2SK77's which came from a donor B-1. But what does one do if unable to obtain the unobtainium 2SK77's? There is a viable replacement - the Tokin 2SK180.

Successful B-1 rebuilds using 2SK180's have been done by AMP8 http://amp8.com/tr-amp/yamaha/yamb1-82.htm#2sk180 and by Audiokarma member Vint Age http://audiokarma.org/forums/index.php?threads/yamaha-b-1-restoration-repair.686467/page-2#post-9418254.
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