>
>On the same day the parasitc choke fried in my AL1200, my trusty and reliable
>SB220 went up in a blaze of smoke. I am inclined to yank everything out of
>the power supply except the transformer and rebuild it.
>
>Is there a source for heavy duty filter capacitors?
Mouser 1 800 346 6873 or DigiKey 1 800 344 4539.
> Does someone make a kit of parts for refurbing SB220's?
Recifiers.: Four 1N5408s (4000piv per leg) will replace the orig. 6 x
600v = 3600piv per leg setup. The orig. filter caps can be replaced with
newer design, higher C units that fit in the same space. The 30k ohm
equalizers need to be changed to 100k ohm 3w mof type. // I would not
go hogwild. The hv supply design is basically sound.
- later, Tom
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|