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HRII debug thread, post the problems you had here
HRII debug thread, post the problems you had here
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Old 13th November 2008, 08:48 PM   #11
destroyer X is offline destroyer X  Brazil
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Default Zener diode decision.... of course we can discuss this a little bit more


and study, together the one is assembling, the best solution to zener diodes considering their specific supply performance.

We can customize to your needs..we can do that together.

regards,

Carlos
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Old 13th November 2008, 08:51 PM   #12
destroyer X is offline destroyer X  Brazil
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Default With the use of rail regulators you gonna have some capacitance multiplier


effect, as you have condenser into the base that will appear (virtually) into the output multiplied by the transistor gain.

So..if you have 220uf, for instance, into the base, this may represent something alike 22.000 uf into the output... say.... to use 22.000uf into the output or to use 220uf into the base may not result too much different.

But..the real big condensers, if you install there, into the rail regulator emitters to ground.... the surge of current when you switch on and face those rail condensers discharged, may destroy your series pass transistors.

regards,

Carlos
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Old 13th November 2008, 08:53 PM   #13
destroyer X is offline destroyer X  Brazil
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Default This explains something about the supply needs


It is a little bit overkilled....you can reduce to 10.000 each rail if you want..but this is to each channel.

If you decide to use a single supply, to feed two channels, better to install, at least, 22.000uf each rail.

Some overkill into supply electrolitic condensers are not a bad idea.

regards,

Carlos
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Old 7th August 2010, 08:59 PM   #14
meanman1964 is offline meanman1964  Belgium
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Carlos can you give me latest updates about this amp regarding the bias settings and if there are any values need to be changed.I like to compair this amp with the Blame ST
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