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uli 9th December 2004 06:00 PM

Some food for thoughts: UniversalX
2 Attachment(s)
This amp is switchable between X Class AB, X SE Class A, X Aleph Class A just by adding or removing jumpers or more luxurious by the flick of a switch.


:nod: :nod: :nod:

drakonis 9th December 2004 06:05 PM


Wow...!!! Nice job you did!!!!


uli 9th December 2004 06:14 PM

jumper setting
1,3,6,7 closed, 2,4,5,8 open => X AB

2,4,5,8, closed, 1,3,6,7 open => X Aleph

2,3,5,7 closed, 1,4,6,8 open => X SE Class A

Many other possibilities

e.g. swap JP 1,2,5,6 to 1N4148 then you get maybe some kind of old Aleph 0 (or was it A1?) system. Until a certain point SE class A then Aleph or so.


:nod: :nod: :nod:

moe29 9th December 2004 06:34 PM

PCB art?

Parts List??


[Swiss Army X]

Seriously though, have you built this Uli?
Looks like you did a lot of work.

uli 9th December 2004 06:40 PM

no i didnt build this
2 Attachment(s)
but its just a variation from that one which is running...


:nod: :nod: :nod:

PS: "Swiss Army X" is super! *ROFLMAO*

uli 9th December 2004 06:45 PM

2 Attachment(s)
in case not having "Ultiboard" :devilr: :devilr: :devilr:


:nod: :nod: :nod:

Nelson Pass 9th December 2004 07:42 PM

I didn't see any kitchen sink in there, did you forget it?

uli 9th December 2004 07:49 PM


Originally posted by Nelson Pass
I didn't see any kitchen sink in there, did you forget it?

What do you mean by "kitchen sink" ?

:confused: :confused: :confused:


:nod: :nod: :nod:

moe29 9th December 2004 08:27 PM

It's an English idiom meaning "when you've added almost everything you can think of adding." ;)

uli 9th December 2004 08:31 PM

allright, Im always happy to learn something new!

:D :D :D


:nod: :nod: :nod:

PS: Im thinking about adding some automatic switch or better stepless transition from one state to another.

PPS: the DC-servo is waiting to be drawn:devilr: :devilr: :devilr:

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