Odd numbers of resistors for feedback duty will promote excessive generation of odd harmonics. Conclusion : you are trying to sabotage Tourny's CFA by masking Evenharmonics using odds in one single recommendation.
Did you read the datasheet? They are Ayrton-Perry wound and specified to < 1nH @ 1 MHz.
Made a simulation, adding 3nH. Gain margin that was 19dB reduced to 7.6dBYes, I know, I just spoiled your fun
Had problems in the past with those kind of Aryton Perry winding with CFAs.
I don't understand your "spoiled your fun". Is-it just to be desagreable, suggesting that I would have fun installing a series of 20 resistors to replace one ?
It is precisely because I find it inelegant that I asked the question.
I double checked the post and the link, and they're totally venom-free.
Can somebody tell me what's going on?
They are designs by others, also. ---
Edmond (a Dutch retired electronics engineer) and Ovidiu (a Canadian engineer). Etal.
-RNM
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Arf. It is enough to puncture his eyes and to equalize the levels and no more problems of evil odds harmonics;-)Odd numbers of resistors for feedback duty will promote excessive generation of odd harmonics. Conclusion : you are trying to sabotage Tourny's CFA by masking Evenharmonics using odds in one single recommendation.
I was interested by the error correction of the output stage attempt. I would have liked to listen to it.
I wonder why, when others try to explore something out of the box, he suddenly lose all his curiosity and sympathy and begins to suffer from his ulcer again.
Both of you seems to be pationated by measuring instruments, you could have made a beautiful couple without this mood incompatibility ;-)
Added phase turns, not levels. it is all about stability margin at 10MHz.
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Inductances in parallel go down, in series up. Why do you think putting them in a zig zag series would see inductance go down?
how much L from the wire to and from the resistor and pcb trace? Maybe more than the R itself.
-RNM
Odd numbers of resistors for feedback duty will promote excessive generation of odd harmonics. Conclusion : you are trying to sabotage Tourny's CFA by masking Evenharmonics using odds in one single recommendation.
?????
That would mean that 1 resistor, also being an odd number, would produce excessive odd harmonics.
I place this in the BS area or was it meant as a joke ?
Hans
Many parts of the circuitry is from others patched together. What ever is original isnt clear. But, would be useful forum discussion rather than jjust sniping. I too have such HP instruments to measure complex Z et al. Several here could open a test equipment rental business.
Would like to hear listen and comment on the sound.
-RNM
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The EF output stage is pretty much a train wreck of distortion esp at low Z/higher current loads. Just working on the output stage alone will bring large benefits... Unless you have a tonne of gnfb and then it doesnt appear too bad. ;-)
What are some of the error corrected OPS designs which seem to work well and not be overly critical or complex?? Bipolar and MOSFET.
Anyone?
THx-Richard
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maybe a design for OPS error correction which could be easily applied to existing products as a mod. for the DIY'ers.
THx-RNMarsh
THx-RNMarsh
PGP is a funny name that Syn08 gave to his Amp design.
Blackberry phones equiped with a PGP protocol, standing for Pretty Good Privacy where used by a large Dutch cocaine syndicate, operating internationally,
PGP is an encryption protocol that was supposed to be uncrackable so they could simply communicate with each other.
A long list of shoot and kill victims, among them a solicitor and the son of a Judge. Everybody that came in their way was simply shot.
However, the PGP encryption was finally cracked, leading to a complete insight who were all involved and about the organisational structure.
Right this monday, the Capo di Capi, Ridouan Taghi was arrested in Dubai.
Hans
Blackberry phones equiped with a PGP protocol, standing for Pretty Good Privacy where used by a large Dutch cocaine syndicate, operating internationally,
PGP is an encryption protocol that was supposed to be uncrackable so they could simply communicate with each other.
A long list of shoot and kill victims, among them a solicitor and the son of a Judge. Everybody that came in their way was simply shot.
However, the PGP encryption was finally cracked, leading to a complete insight who were all involved and about the organisational structure.
Right this monday, the Capo di Capi, Ridouan Taghi was arrested in Dubai.
Hans
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