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Skip Pack  
#1 Posted : Thursday, May 19, 2011 10:54:15 AM(UTC)
Skip Pack

Rank: Member

Groups: Member
Joined: 6/18/2008(UTC)
Posts: 3
United States
Location: Hollister

I am thinking of using an LCDPS as a bias supply for a
tube preamp. I can think of a couple of issues. I can
tolerate a little bit of noise as it will be biasing a
cathode follower stage and there will be no gain boosting
the noise. I also thought that, because the biasing itself
will draw virtually no current, that it might be wise to load
the supply with a resistor to draw a small optimal current.
Is there an optimal ma. amount that makes the supply work
best (quiet and stable)?

Finally, I expect the initial bias to be around 18 volts.
What is the highest power transformer voltage I should use
for adjustment around that target voltage?

Thanks,

Skip Pack
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