Так и должно быть
Это так и должно быть. Интемодуляционные искажения 19/20кгц с одной парой выходных транзисторов во вложении . С 2 парами выходных транзисторов еще лучше
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Your input and feedback network quite different compared to minek's version. Inverting input is grounded, so the input signal and the feedback go to the non-iverting input of opamap. Am I right?
130дб усиления с разорванной оос на 20кгц на дороге не валяются.
130db gain with a broken 20kHz OOS is not lying on the road
130db gain with a broken 20kHz OOS is not lying on the road
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Absolutely definitely 😀
This looks like MOS200 indeed, but MOS200 is @-40dB, while this @-09dB
Well, your attachment has a primitive amplifier, and my attachment shows linear amplifiers with a large loop gain
No, not in this design.
Current drop-in replacement would be Exicon lateral fets.
Exicon Lateral MOSFETS
They are pricey though...
In few weeks I'll publish Wiederhold amp with drivers and all N-channel HexFets (E.g. IRFP240).
Quasi !!
Have it in the works now, seems very promising, and quasi design is more in the spirit of the original 1977 design 🙂.
Here is spice file for BJT version, but I'm not planning to build it..
It's too similar to previously built Lomakin and Parshin amp, which really is Wiederhold's derivative..
Testing Wiederhold amp at higher power 🙂
Works beautifully. Especially playing Vivaldi's "Winter"..
Running low-warm, so heatsinking is definitely adequate.
In the pic - my rack with some of the recently built amps 🙂
Works beautifully. Especially playing Vivaldi's "Winter"..
Running low-warm, so heatsinking is definitely adequate.
In the pic - my rack with some of the recently built amps 🙂
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Структура Ломакин Паршин лишь похожа на Видерхольда,но это совсем иной усилитель с вложенной оос и инверсией входов оу
Translation:
The structure of Lomakin Parshin is only similar to Wiederhold,
but this is a completely different amplifier with nested oos and
inversion of the oo inputs.
Yes, you are right.
The structure of Lomakin Parshin is only similar to Wiederhold,
but this is a completely different amplifier with nested oos and
inversion of the oo inputs.
Yes, you are right.
MOS200 is not really a good amplifier, in my opinion.
This design can't perform good, and it's not even comparable
to any of the amps in this thread.