Hello ,
if this is the right place to ask for possible substitutes. I would like to replace 1 mosfet with 1 of my Semisouth SJEP10R063.
Any changes necessary?
wr
Helmut
if this is the right place to ask for possible substitutes. I would like to replace 1 mosfet with 1 of my Semisouth SJEP10R063.
Any changes necessary?
wr
Helmut
Sorry, no can do, I can’t find those schems any ore since my computer is full of my latest iteration of the XS300 schems 
Edit: Ask IAMH, can’t seem to post the pdf from here, some dodo or gremlins around.

Edit: Ask IAMH, can’t seem to post the pdf from here, some dodo or gremlins around.
Last edited:
Progress report!
Song to start the fun was the number of the beast by Iron Maiden. Hopefully Randy approves!
Now onto the PSU.
Song to start the fun was the number of the beast by Iron Maiden. Hopefully Randy approves!
Now onto the PSU.
I never had SS devices for this. No files from this guy. Now... if someone were to send me some of those precious devices to make 100% sure they operated with this circuit / with these boards, I promise, promise, promise to post a complete schematic.Sorry, no can do, I can’t find those schems any ore since my computer is full of my latest iteration of the XS300 schems
Edit: Ask IAMH, can’t seem to post the pdf from here, some dodo or gremlins around.
well, it's normal having ZM opening someone's eyes
(if nothing else, own eyes every morning)
(if nothing else, own eyes every morning)

Hello ,
if this is the right place to ask for possible substitutes. I would like to replace 1 mosfet with 1 of my Semisouth SJEP10R063.
Any changes necessary?
wr
Helmut
andynor is certainly intending to write them ( values) later, but more eager to make fun first
anyhow - changes for implementing Semisouth down:
make M2 Semisouth SJEP
make R29 0R (short made of fat wire - same as 3W resistor pin thickness; elevate it 1mm above pcb, to avoid shorts)
make R9 0R (short made of thin wire, or nice resistor lookin short - they make them in 0207 size, one black strip in middle)
What's the full part number of the SJEP.
Maybe it's this one: Just $154 each + stupid shipping cost to the UK of $35 Have to sound super super good to justify paying that.
https://www.ebay.co.uk/itm/202756261818
Maybe it's this one: Just $154 each + stupid shipping cost to the UK of $35 Have to sound super super good to justify paying that.
https://www.ebay.co.uk/itm/202756261818
Do not buy those from ebay unless Papa knows the seller personally or he/she is here on the forum and can be properly castrated if they are fake.
But they do sound good, yes they do.
But they do sound good, yes they do.
I'm sticking with what's in the kit which won't arrive for a week or two and then do extensive listening tests before I think about mods.
Remember to give it time, say 50 hours, before passing the real judgement. Especially if installing C1.
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