[Collins] Another 516-F2 PS Question

Al Parker anchor at ec.rr.com
Tue Nov 10 16:33:02 EST 2015


Hi Folks,
	I just found out why my 516F-2 was putting out about 1400vdc.  C1, the 
0.05 at 1kv cap across the filter choke was shorted.  Thus, I had a 
capacitor input "filter" with no inductance or series resistance.
	IIRC that cap is to resonate the choke when using 60c AC input.  The 
note on the skem says to remove it if the line freq. is above 60cy.
	Question, how much affect does it have on the output voltage or 
filtering?  I don't have a 0.05 at 1kv cap in stock, but could series 2 
.01 at 500's.  But what difference would there be if I left it out?
any thoughts would be appreciated
73,

Al, W8UT
www.boatanchors.org
www.hammarlund.info

"There is nothing -- absolutely nothing -- half so much
worth doing as simply messing about in boats"
Ratty, to Mole


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