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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Posed this question to a
fellow engineer (station's transmitter engineer, who deals with high power
equipment, much of it older). His answer:<br>
<br>
"Digikey still lists large electrolytics, but shows no stock. <st1:City
w:st="on"><st1:place w:st="on">Newark</st1:place></st1:City> had a .15F, 50V
available for $112, and 50 in stock. I think he’s not looking hard
enough, or maybe size is a problem. Although, electrolytic caps are
smaller per uf these days than they used to be.<br>
<br>
For a +/- 12V supply, the capacitance value is not critical. Anything
above .145F @ at least 20V will work, as long as you don’t get too carried
away. Size of replacement vs. available space becomes the issue.<br>
<br>
Rick Poling<br>
RF Supervisor<br>
WTTK 29<br>
WTTV CW 4<br>
WXIN FOX 59<br>
rpoling@tribune.com<br>
"<br>
<br>
Steve Walton<br>
swalton@tribune.com<br>
<br>
<br>
<o:p></o:p></span></font></p>
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