Pete, Please do not "Muntz it"before you get it going good. Thanks.
That's precisely what I would advice. Thx!
Besides, compared with the PMP or PGP amp, it has already been "Muntzed". 🙂
Cheers, E.
See: Madman Muntz - Wikipedia, the free encyclopedia
"He often carried a pair of wire clippers, and when he thought that one of his employees was "over-engineering" a circuit, he would begin snipping components out until the picture or sound stopped working. At that point, he would tell the engineer "Well, I guess you have to put that last part back in" and walk away."
"He often carried a pair of wire clippers, and when he thought that one of his employees was "over-engineering" a circuit, he would begin snipping components out until the picture or sound stopped working. At that point, he would tell the engineer "Well, I guess you have to put that last part back in" and walk away."
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If I remember Mad Man Muntz correctly, he was from Southern California and made his fortune putting the first radios in cars. I wasn't aware of the being Muntz'd story though!
Just before testing.
Still4given added the "Csp1/ 2" . Super-pair has no native Ccb (capacitance).
Kyptons were the first with Baxandalls , Stillforgiven made the first (second 😀)
oscillator 😱 .
OPS might oscillate without these !!!
15-22pF will do for these.
(below) shows this. Kypton-C already has these as main compensation.
OS
Attachments
Give me a break , Ed ! I only "muntz" enough to get it (the designs) to the
soldering table. The TIS can not be muntzed to <18 semi's to serve its
true purpose (sub PPM perf.) - the way it is...
.PS - Thimios ... you have become EXTREMELY refined in the toner transfer prototype
department !! WOW
OS
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Just before testing.
Hi Thimios, I just observed from your builds... is that a metallic wrappers around the transistor pair? and what is the the purpose? Thanks.
Comin' right along ... EFA
"excellent flippin' amp" is progressing nicely 😎 .
Hawksford and the "H" bridge stages are nearly "mirror image". Comp.
Caps are short traces to ND- PD+. (below 1)
The 2 diamond inputs are the only ones that need "face to face" coupling.
I have a feeling this amp will "fly". Really linear at 170v p-p - low THD -
with the CFA's slew rate .
It will "eat" square waves of this magnitude , as well ! 😱
OS
"excellent flippin' amp" is progressing nicely 😎 .
Hawksford and the "H" bridge stages are nearly "mirror image". Comp.
Caps are short traces to ND- PD+. (below 1)
The 2 diamond inputs are the only ones that need "face to face" coupling.
I have a feeling this amp will "fly". Really linear at 170v p-p - low THD -
with the CFA's slew rate .
It will "eat" square waves of this magnitude , as well ! 😱
OS
Attachments
Finally decided what Thimios will "wrap with copper" (below)
For a "fast" IPS , all traces must be "short and sweet" .... they
cant meander or run parallel (with other traces) for a long distance.
I added some parasitic trace capacitances to the rails of the IPS (in LT) ,
my initial .1uf decoupling negates them nicely.
This layout should be capable of (at least) 300V/us with the slewmaster
OPS.
I also thermally modeled the whole circuit - slightly negative co-efficient.
this is preferable (to a positive one).
All this is where "the rubber hits the road" -
When I have a real amp , all this will be physically resolved before the
"road". I just want to design to make Thimios's life care free. 🙂
PS - I thought I would share some of the "moonshine madness" that
goes into these designs (in real time - live) "I think i'm alive" (or is this a dream 😀).
OS
For a "fast" IPS , all traces must be "short and sweet" .... they
cant meander or run parallel (with other traces) for a long distance.
I added some parasitic trace capacitances to the rails of the IPS (in LT) ,
my initial .1uf decoupling negates them nicely.
This layout should be capable of (at least) 300V/us with the slewmaster
OPS.
I also thermally modeled the whole circuit - slightly negative co-efficient.
this is preferable (to a positive one).
All this is where "the rubber hits the road" -
When I have a real amp , all this will be physically resolved before the
"road". I just want to design to make Thimios's life care free. 🙂
PS - I thought I would share some of the "moonshine madness" that
goes into these designs (in real time - live) "I think i'm alive" (or is this a dream 😀).
OS
Attachments
Even as I am "crazy" ... this is good !
To think "outside the box" takes life experiences that most do not have.
My "take on this" is very practical ... the "nuttiest " members supply the
concepts - I convert it to the "real thing" (another IPS.)
OS
OS, and others please give me a comment of my simulation here: http://www.diyaudio.com/forums/solid-state/264732-new-output-stage.html
Very good !! Next "victim" 😀 .
DDC and DDV IPS's...
OS
I think I just further delay the EyeSee 🙁
Sansui diamond differential or John Curl H bridge with two AD844 output :
http://www.delapucealoreille.com/
http://www.homecinema-fr.com/forum/post178243980.html#p178243980
http://www.homecinema-fr.com/forum/post178248183.html#p178248183
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
http://www.delapucealoreille.com/
http://www.homecinema-fr.com/forum/post178243980.html#p178243980
http://www.homecinema-fr.com/forum/post178248183.html#p178248183
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I'm actually working on the design, rather similar to the top picture with AD844, but with my own discrete operational amplifier with OTA topology 🙂
Lots of current mirrors 🙄 Another "crazy" thing 😛 But looks promising...