2sk77b

A while ago, 5 of these SSAP4002M pucks were auctioned on Yahoo Japan; with my never-failing luck 😛, I only managed to score one of them, but I thought - it's just a 2SK77B with a house label, I'm bound to find another 2SK77B somewhere...

Well, to my utter astonishment, this turned out to be a P-channel SIT! 😱


The other four are on my table.🙂 Like you I thought it was 2sk77B , They are very closely matched quad. Somewhere I read that SRCC made SSA 251 and 2sk77B are same.So I bought SSA 251. They are on the way.
 
expecting pcbs in no less than 10 days from now

from my previous playing with SITs , I expect spooky! 158% , but not without properly sensitive speakers ..... which , with all respect, speakers equipped with dome tweets are simply not

only those are able to reveal brute finesse :rofl: of so simple construction
 
I think THF 51 is better than 2sk18x except its Ciss very hight. Mr Pass teach us Cascode topo will help so I'm going to try Tubeman' topo with Tokin THF-51S & CGH40045G CREE
 

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