Has to be at least a tripler with 6kV diodes and 10nF caps/10kV each. For a
tripler - 3 diodes and 3 capacitors...
Greg
At 12:17 AM 2/6/07 +0000, Kevin John Chadwick wrote:
Hi All,
Two questions:
Anyone heard from Deane Kidd recently? Is he still answering e-mails
(vacation?).
I am looking for an HV multiplier for a really good 2235. If I cannot
locate one at a reasonable price I would like to build one using
discrete diodes and capacitors (12 kV for HV and -2kv for focus).
Anyone know what is inside the original multiplier circuits? - or has
a scrap 22xx complete with multiplier for sale?
I have checked the archives but can find very little on the 2235
multipliers just lots about 547s. Trying to remove the potting from
the failed unit seems to be just about impossible. The existing HV
multiplier still works but loads down the power supply and prevents
the -8.6 v from getting past -8.3 before the current limiter kicks in.
Presumably the existing multiplier is leaky when the high voltage is
generated.
Thanks for any information.
Kevin C
Ottawa ON
Emacs!
