May be, may be not. I already tried a lot of caps in signal paths of various amps and the ones I use in my current experiments are the filtered ones. 🙂
Not to forget that a lot of people don't like changes in their equipment, at first sight and until they are used to it. And that some amp can have defaults witch can compensate source problems ?
I used to test many amps in my studio. (Manufacturers wanted to have some "studio reference").
Unless the amp was pitiful (8/10) and eliminated after 3 minutes, it was only after one day working with it that i was able to make my opinion. I remember that some amps, looking impressive at first listening, can make mixing process very difficult.
That makes-me remember that my favorite was a Studer, CFB if i remember well. Something plugged-in and forgiven because its transparency.
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Can't say, more when I will visit. Meantime he will try BF245C local CCSs, 1.5K feedback resistor instead of 2k2 is next (ups OLG to 45dB and FB to 21dB).
Its a bridge system, balancing factors are many to tweak, yes. There is no VAS by the way, its just a 2 stage amp, thus challenged for OLG. There is an input symmetrical cascode and a Sziklai BJT-LATFET compound output pair.
Common emitter output? Hmm, then I think the resulting sound will be way different from my build.
He had made this, going to try that. (10pF C4,C5 is better if 2nd successful IMHO).
Attachments
Hi Salas, I failed to see a BJT+MOSFET Sziklai in the schemas, as claimed in post 3367. Do I miss something? Also, IMO, Q5 and Q6 makes a symmetrical voltage amplification stage or VAS.
The schemas look very close to mine, however. All the best to the experimenter.
The schemas look very close to mine, however. All the best to the experimenter.
I wrote sorry, I remembered wrong (#3370). I also wrote he made your amp sans just few details.
Ah. I see.
In a much earlier post I think LC warned you of the thermal dependency of the BF devices. Is this okay? Coz offset can go trolling in a funny way.
In a much earlier post I think LC warned you of the thermal dependency of the BF devices. Is this okay? Coz offset can go trolling in a funny way.
They were OK in the old amp, their negative tempco helped the input pair even. As for what will do in yours, I will know in due time.
Damn I'm THE slowest guy here, As LC said...
Nice and sharp job Cambe!
edit: Hi Cambe. Did you forget to mirror the artwork? The peeceebee looks like printed as-is, reversed
. Well, won't be a problem if you flip all the parts and PS also, I think.
Nice and sharp job Cambe!
edit: Hi Cambe. Did you forget to mirror the artwork? The peeceebee looks like printed as-is, reversed
. Well, won't be a problem if you flip all the parts and PS also, I think.
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nicely done!
, but look like you've reversed it.should look like this http://www.diyaudio.com/forums/solid-state/193923-simple-symetrical-amplifier-309.html#post3171741
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