[Hammarlund] HQ-150 Line Bypass Caps Needed

Al Parker anchor at ec.rr.com
Sun Aug 22 13:49:27 EDT 2010


Hi Bob,
	Is the concern just (mostly?) power consumption of the capacitor across 
the line?  If my math is correct, a 0.01 uf cap across a 125v line draws 
0.03 watts.  I suppose the greenies are looking at gnat hairs, but if 
that's so, why not just put it across the line AFTER the on/off switch, 
not before as in the diagram on that page?
	Thanks Carl, for the Vishay WYO suggestion, I'm putting in an order to 
Mouser today, will go for them.
	I thought I saw a note from Roy today on this, but can't find it now.
	Bob, CU on the VSB net shortly?
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

On 8/22/2010 11:40 AM, Robert Nickels wrote:
>    While not relevant to our boatanchor repair purposes, slapping an X
> capacitor across the AC line is more complicated than it may seem, at
> least for OEMs who much meet new "green" power consumption requirements
> (such as EuP Lot 6 compliance).   One company has just introduced a
> solution - an Automatic X Capacitor Discharge IC:
>
> http://www.powerint.com/products/capzero-family/capzero
>
> How to do this with vacuum tubes will be left as an exercise for the
> reader ;-)
>
> 73, Bob W9RAN
>
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