2sk77b

Bob, I don't have those but I do have a pair of IXFN48N50 devices gathering dust. Now they are only rated at 48A and 520W but if you think they would do let me know - for you and only you you can have them for the low low cost of $ .01 sorry that's my lowest price !
 
Official Court Jester
Joined 2003
Paid Member
:D
 

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Last edited:
The one and only
Joined 2001
Paid Member
What would I use in place of the IXFN140N20P?

There are some nice big transistors in the catalog, but be sure to
pick one that shows a DC SOA line - there are lots of big fets coming out
designed purely for switching, and many do not spec linear operation.

You don't want a device rated 800 watts switching but less that 20
watts at 40V.
 
Official Court Jester
Joined 2003
Paid Member
so,recapitulation of files still being just in PC realm

values pretty much sorted, wire-pad names also sort of sorted

upper pcb valid for all amp iterations

lower SIT pcb valid for 2SK77B,THF51S,2SK182ES ; LM317 and IRF cascode voltages adjusted to expected Ugs of 2SK77B , little tweaking of same desirable to maintain aroundish 9V across each input buffer half

lower mos puck pcb valid for Poor Men iteration

Hasta La Vista , Make my day Punk, I'll be back , Let's go to sleep

:clown:

did I said that I ordered a pair of said pucks ?

funny dummy ZM , I forgot that I need two pairs for stereo Poor Men amp ..... anyway , one pair is enough for testing , I really don't need to build it for real, I mean to use it (stereo)

:clown:
 

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