Part of the charm of a "current feedback" type op amp
is that it is not an ideal op amp in the usual sense. It has
a poor input impedance on the (-) input node, a highly
exploitable "flaw".
is that it is not an ideal op amp in the usual sense. It has
a poor input impedance on the (-) input node, a highly
exploitable "flaw".
Re: Pass_Yax2_JH
Where's the blue LED???
Or do we need another color for this kind of amps?
You are now the proud owner of the first stereo Pass_Yax2_JH.
Passdiy should make a seperate gallery for it.
/Hugo - Working (in bits and peaces) on his AlephX. 😉
jh6you said:Here is a new construction.
I am listening with the unbalanced signal input. Sweet...
JH
Where's the blue LED???

Or do we need another color for this kind of amps?
You are now the proud owner of the first stereo Pass_Yax2_JH.
Passdiy should make a seperate gallery for it.

/Hugo - Working (in bits and peaces) on his AlephX. 😉
Re: Re: Pass_Yax2_JH
I was thinking about it, Hugo.
JH
Netlist said:
Passdiy should make a seperate gallery for it.![]()
I was thinking about it, Hugo.
JH
JH,
very nice
Hugo,
sleepless nights with this you know what
Everybody,
I think my madness circuit is useless because the transistors have current flowing under all conditions anyway
So I will concentrate in raising power, found a circuit in the net which is possible to adapt to our circuits hopefully 😎
very nice

Hugo,
sleepless nights with this you know what

Everybody,
I think my madness circuit is useless because the transistors have current flowing under all conditions anyway

So I will concentrate in raising power, found a circuit in the net which is possible to adapt to our circuits hopefully 😎
Bernhard said:I think my madness circuit is useless because the transistors have current flowing under all conditions anyway![]()
So I will concentrate in raising power, found a circuit in the net which is possible to adapt to our circuits hopefully 😎
Giving up already?

Soon, Nelson will show up with his magic bag. Then, again you'll have new circuits to explore, and have sleepless nights.😉
/Hugo
This thread is merely a diversion along the path. I would not
expect anyone to take the integrated circuit approach too
seriously, but I do think it has been an instructional excercise.
JH has done particularly well, I'm sure we'll all agree.
😎
expect anyone to take the integrated circuit approach too
seriously, but I do think it has been an instructional excercise.
JH has done particularly well, I'm sure we'll all agree.
😎
I don't do Haiku...
I imagine Nelson standing at a BIG pond with a bag full of pebbles. He throws them into various places into the pond in various ways and watches all the strange ripple patterns and thinks ....
Bwaaah, hah, hah!!!!
Just keep throwing those stones, baby!
And yes, JH has done VERY well!
Sorry, It's Friday, time to go home and all the brain cells allotted to the office for the week have been sufficently fried.
A good weekend to all.
mlloyd1
I imagine Nelson standing at a BIG pond with a bag full of pebbles. He throws them into various places into the pond in various ways and watches all the strange ripple patterns and thinks ....
Bwaaah, hah, hah!!!!

Just keep throwing those stones, baby!
And yes, JH has done VERY well!
Sorry, It's Friday, time to go home and all the brain cells allotted to the office for the week have been sufficently fried.
A good weekend to all.
mlloyd1
Nelson Pass said:This thread is merely a diversion along the path
...
it has been an instructional exercise.
...
Nelson,
if a circuit got all the supersymmetry stuff except the cfb OP, will it be supersymmetry still ?
if a circuit got all the supersymmetry stuff except the cfb OP, will it be supersymmetry still ?

Thanks for your nice words.
Specially to Mr Nelson Pass, I have learned and felt many things, reading through your articles, comments, advices, way of thinking and way of writing... Best Regards 🙂
JH
Specially to Mr Nelson Pass, I have learned and felt many things, reading through your articles, comments, advices, way of thinking and way of writing... Best Regards 🙂
JH
The XXX file
The space in the middle is for upgrade with madness circuit.
Mosfets can be paralleled of course.

An externally hosted image should be here but it was not working when we last tested it.
The space in the middle is for upgrade with madness circuit.
Mosfets can be paralleled of course.
JH, is there a difference in sound, power, stability ...
balanced vs. unbalanced?
Bernhard, according to the rule: gain is feedback R/ input R
you seem to have very high gain. Not good for distortion IMHO.
Try a square wave too.
/Hugo 😉
balanced vs. unbalanced?
Bernhard, according to the rule: gain is feedback R/ input R
you seem to have very high gain. Not good for distortion IMHO.

Try a square wave too.
/Hugo 😉
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