Hi from Deane:
Yes, I am still alive and well and still rather sarcastic as follows. You want the HV multiplier from the 2235 scope but you don't include the Tek part number. Yes, I can go find the manual and then the schematic and thefile number and then the part number, but you have the part in your hand. All of us that have parts for Tek items use the same part numbers and it sure makes it easier to help. I have about one hundred multipliers and I know that I don't have the 465M multiplier but I don't know the number for the 2235.
Deane
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----- Original Message -----
From: Kevin John Chadwick
To: TekScopes@...
Sent: Monday, February 05, 2007 4:17 PM
Subject: [TekScopes] Tek 2235 HV Multiplier
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
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