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Old 1st May 2011, 02:56 PM   #1
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Default K40Y-9: Questions And Comments

These are Russian PIO Caps. Does this symbol indicate the construction of the Cap? Which is the preferred In (Driver Plate) and Out (Output Valve Grid)?

I want to orient them before I run them very long. I have tried them both ways and can't hear a difference.

These Caps sound good. I think they will sound even better after some hours are put on them.
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Old 2nd May 2011, 02:06 PM   #2
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Somebody must know the answer to this one. A little help please.
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Old 2nd May 2011, 02:36 PM   #3
tyo94 is offline tyo94  Indonesia
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As far as I know the left side of the logo which you mark with circle is the lead to signal input
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Old 2nd May 2011, 02:40 PM   #4
ryuji is offline ryuji  United States
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They get pointed in direction of higher potential, at least that its what my friend that uses them told me to do. He also said both ways is fine for it but the way I just described is less distortion

I been using them on my amp for quite some time that way without trouble

Last edited by ryuji; 2nd May 2011 at 02:45 PM.
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Old 2nd May 2011, 02:58 PM   #5
ryuji is offline ryuji  United States
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Old 2nd May 2011, 05:20 PM   #6
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I've tested these caps for an outer foil with an o-scope, and haven't noticed a difference either way. Not so with other caps that do not have the aluminum case. Your best bet is to ground the case and leave it at that.
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Old 2nd May 2011, 09:36 PM   #7
TG is offline TG  Ukraine
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Quote:
Originally Posted by Troncones View Post
Does this symbol indicate the construction of the Cap?
Nope.
This is just a manufacturer logo ("Epsilon" factory, Odessa, Ukraine).
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Old 2nd May 2011, 11:41 PM   #8
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I like 'em!

Such well made, solid built like a tank hermetically sealed PIO caps and at such a great price from former Soviet Union....

Sound like a VitQ, nice and clear, no bad points IMO...

I always thought that logo denoted the outer foil connection--Guess I was wrong....
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Old 3rd May 2011, 12:24 AM   #9
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This is what I had always read... but who really knows for sure?

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Old 3rd May 2011, 01:05 AM   #10
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Any recommendations where to buy them?

Thanks, sp
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