Hehe..
I was tempted to do that, 1 better!
The JTM46 will retain the circuit of the JTM45, ie it wont detract from the original.
Except for perhaps the big cathode cap on v1, maybe I'd make that smaller, ie a normal mod
What it will have are mods that people usually request. So we pre-empt the requests. These are (not finalized):
1) Ext and possibly dual bias
2) 1/2 power switch
3) PPIMV
4) Bright switch
5) Buffered SS loop
6) Carbon film resistors, CC only at plates and some other parts
Thats basically it. The mods, they can be defeated to make it stock JTM45 amp. So, it's indeed a +1!
Thanks!
nik