The Nemesis 813 PP Amplifier

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IslandPink
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#361 Re: The Nemesis 813 PP Amplifier

Post by IslandPink »

ed wrote: Tue Jun 30, 2020 1:53 pm it really should count, it's prompted by Susan Parker, her of Zeus fame.
Well of course you are right .. but I don't know Susan from Eve. I can go away and redress this, given a little time, though !
"Once you find out ... the Circumstances ; then you can go out"
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Paul Barker
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#362 Re: The Nemesis 813 PP Amplifier

Post by Paul Barker »

That brings the adapted halogen lighting smps. Unwind choke one turn to raise frequency further from 20khhz, alter output transformer (tiny toroid) Sq wv scope it for rms.
"Two things are infinite, the universe and human stupidity, and I am not yet completely sure about the universe." – Albert Einstein
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Paul Barker
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#363 Re: The Nemesis 813 PP Amplifier

Post by Paul Barker »

Stephie says filament starvation is effective on 813....
"Two things are infinite, the universe and human stupidity, and I am not yet completely sure about the universe." – Albert Einstein
seaview
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#364 Re: The Nemesis 813 PP Amplifier

Post by seaview »

I am looking for 0-2.5-5-6.4v Paremeko filament transformer. Can I get your assistance?
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#365 Re: The Nemesis 813 PP Amplifier

Post by seaview »

IslandPink wrote: Tue Jun 30, 2020 4:52 pm James - can you think of any reason why I was able to get the Auroras dead quiet with AC fils on the 300B's, but Stephen couldn't get it anywhere good enough on the 813's ? There must be a few dB difference accounted for by the 10V vs. 5V , plus the Tannoy 15's vs. Ariels , but even so...
I think I used the Paremeko transformers which have 0 - 2.5 - 5 - 6.4v windings, hence a built-in centre tap.
Hi.I am looking for 0-2.5-5-6.4 Paremeko filament transformer. Can I get your assistance?
Kind regards
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