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In the Forum: Melquiades Amplifier
In the Thread: A different breed of 6C33C amplifier.
Post Subject: It is about Sound, stupid.Posted by Romy the Cat on: 3/17/2012
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 KOTriode wrote:
Romy,I looked at your Melq schematic : http://www.goodsoundclub.com/PDF/Melquiades_SET.pdf  regarding the 6E5P bias. Would it be simpler to use two alkaline battery in place of R5 to provide 3V , or 3 Rechargeable for 3.6V in place of R5 ? Did you tried that?

I for sure do NOT call you stupid but rather improvise upon the celebrated Bill Clinton’s 1992 presidential campaign slogan against George Bush. KOTriode, I think you are NOT understand my whole adventure with Melquiades. If all that is necessary is to supply right voltage to the 6E5P drip then it would be so much simpler and any amp with right voltage would sound “right”. I did explain at this site a lot about the motivation and reasoning to use this type of bias instead of just “voltage supply”. I do not insist that my explanations are correct but I feel that my findings are very much accurate.  BTW, if you have 6E5P with min 15K plate resistor driving 6C33C then to convert the 6E5P to battery, cathode or fixed bias will be for you the matter of a few minutes. So you will be able to make your judgment.  The Melq’s idea was to engage the 6E5P in two-stage operation and among what I have seen the use of the 6E5P in the way how Milq does it provide the most interesting sonic result. There are many other ways to drive 6C33C, including multiple stages but if you attempt to use 6E5P (and I do not know if you do) than I do advise my version, at least to try and to fitness what will happen with Sound.

The Cat

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