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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Re: application posted by Steve O on March 3, 2007 at 17:34:35:
Steve
I use polypro caps but I use them as power supply filter caps where we are dealing with one frequency 120hz but thats me.
The pio caps I speak of in the vit Q or the k40 are very expensive caps that the US or Russian Military paid dearly for and I have a price list here from 1953 showing where the us military paid 22 dollars for a single .015 at 600vdc cap.Now thats quite a bit of money even today for most people let alone 1953 where it would be in the neighborhood of 105 dollars per cap if sold today. Had these caps been made cheaply by a factory with no attention to detail or tolerance and just basic materials,they may be just a so so cap.
Anytime the military has something made its usually top notch.When I talked to rel cap and the one engineer is telling me that he uses k40s in his amps,it made me realize that they must be somthing to behold being the access he has to caps himself.When he told me they could build a cap like the k40 and this was the .1@630vdc cap for 135usd,I thought what a bargain at 4 or 5 dollars each.The big price was already paid for these caps and now we are buying them at surplus marketing cost or maybe they are hot,who knows!! At any rate when I see parts connexion selling a a pio cap for 1400 dollars each,I wonder how much better it is if any.
Steve like you said and basically everyone else says,if we rely only on specs,we will wind up with a diversity of opinions and maybe none that we like.I guess its buy what you like but being I have a hand in the vta board with upgrades with roy mottram,I know the difference the k40s make in that board.
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- Re: application - Michael Samra 22:04:22 03/03/07 (0)
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