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January 1997

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Subject:
From:
"Thomas E. Waznis" <[log in to unmask]>
Date:
23 Jan 97 19:32:12 -0800
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>          Is somebody really providing any type of pulse plating
>          still??  I thought those things proved to not work YEARS
>          ago.  This was so long ago, I forgot what (so called)
>          advantages they were supposed to provide over standard
>          rectification.
>


Worked fine for me a few years ago on a deep nickel - gold (hard) line. I used
it to get shorter plating times, less dryfilm attack, a little better
leveling.
Main problem was the variable time of each pulse on the supply was very short
for board plating applications; used the longest pulses I could set & could
have used a little longer. Peak power only allowed one panel at a time too.




Tom Waznis

Hallmark Circuits Inc.
San Diego

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