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Old 9th March 2009, 06:55 PM   #1
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Default DDD mfg co High Voltage power supply?

I'm having trouble locating a schematic for this Power Supply

D D D Mfg. Co.
Model 3-150B

uses 6BG6 GA power tubes and is in the 19" rack mount configuration.
any help would be appreciated, I seem to be striking out on with the usual web searches. Also the local ham radio flea market was lot's of fun. I risk being down 25 dollars if I cant fix this.
Thanks
Bob
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Old 9th March 2009, 11:26 PM   #2
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Default Re: DDD mfg co High Voltage power supply?

Quote:
Originally posted by firechief



I risk being down 25 dollars if I cant fix this.



Not Really

case work like this would be, 'a bit more ' than $25 new.


make a nice amp chassis.





44
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Old 10th March 2009, 01:51 AM   #3
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Chances are good that if you replace all the electrolytic and/or wax caps this power supply should work fine. Hopefully it was not modified or "repaired" by a previous owner. Give it the same treatment as an old amp or radio being fired up for the first time in years.
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Old 10th March 2009, 02:07 AM   #4
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Thanks astouffer
The good news is that the unit came with a set of replacement filter caps, witch I think are oil filled paper. I will be digging into it, but it would be nice to have the schematic. Perhaps I will just draw the schematic as I work on it. There are also some electrolytics I spotted. You know the multi section can type. So with something that old, it might take a multi prong attack. I will know more soon. I think that this was not made in any volume, so that could explain the lack of information. This is intended to replace a Fluke 406 witch is on loan from a goooooood friend, and he deserves to get it back.
Bob
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