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In the Forum: Melquiades Amplifier
In the Thread: Full range Melquiades implementation
Post Subject: Sure, why not.Posted by Romy the Cat on: 3/28/2015
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 decoud wrote:
Thanks, Romy. What about drift in the driver bias, etc?
I suppose the liveliest component, in terms of dramatic breakdown, is the electrolytics. I have been thinking of changing to film, but in that size they are hard to find at reasonable prices.

I do not have any drift in the driver bias, it is dead stable in any Milq I tried. The electrolytic after the gas tubes is a very finicky subject. What I learned what I experimented with it that this last cap to ground after the gas tube does impact sound very dramatic. The selection of 10uF was not an accident but a result of many trials. A 2-3uF up or down did make difference in making sound more relaxed vs. to be more stringent.  I do not remember if I tried film, most likely I did and I did have large film caps. I however do not remember the result of film application. It might be worse to try different types of film not or to try to bypass the electrolytic with good film. I am saying it despite that I am not a huge fan of electrolytic bypass but of somebody want to experiment with it then the opportunity is there.
 

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