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Ping Iain Churches
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Hi Iain,
I've been chewing over that short and long chain issue wrt power supply
smoothing.
Did you have any particular component values in mind I could plug into some
equations ?
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See:
A "stripped" simulator, that works surprisingly good for tube power
supplies.
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Interesting. I'll look into that. Cheers Sander.
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Another interesting subject.
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Hmmm.........there's some discussion about my sig going on in RAO at
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Hi Graham.
The two ends of the spectrum seem to be:
16µF-5H-16µF
and
200µF-20H-200µF-10H-470µF-R-470µF
I have seen several examples of both. On the last
example of the second type, the R was 5k5.
with the phase splitter and the front end fed from
the last two caps respectively
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My goodness ! They're *that* different. For what kind of output power ( and B+ )
was this ?
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Yes, quite a contrast, particularly as both amps came from the same stable.
The builder produces exactly what the customer wants (or thinks he wants:-)
And you know how the customer is always right:-))
The first "short chain" amp was an 25W EL34 PP amp with a cascode front end.
There was 420V on the B+
The second was a PPP with two pairs of 6550 per channel. B+ at 600V
Both sounded very good indeed. The big amp was totally silent when idling
in ETS (ear to speaker) test. I got the impression that the bigger amp
sounded
more effortless in sffz orchestral passages when playing at the same level
as its little
brother. I wondered if the stiffer psu contributed to this.
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I compared a 92 Geo Metro with a 2006 Ford Mustang. The Mustang felt
like it had more power. I wonder if it was the Air Freshener hanging
from the rearview mirror.
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Best regards
Iain
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the moment ;-)
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Who else finds 'surround sound' distracting rather than beneficial to music
listening ?
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