[Boatanchors] HQ-150 Line Bypass Caps Needed

[Drew P.]

Hello Bill,

Voltage ratings have been established so that the line bypass caps will withstand most of the sometimes horrendous transients encountered on the line.  They are designed to "fail safe" on very large transients - Y caps will fail open so as not to make the chassis "hot". X caps will not catch fire so as not to make the chassis "hot" in another way.

You might peruse the information available here:

http://my.execpc.com/~endlr/line-filter.html

Drew


Bill Stewart wrote: 
 
> At the risk of running this subj. in the ground, let me ask
> one more question. 
> What governs the capacitance/voltage spec?of the line
> bypass capacitor? I have several Hammarlund? rcvrs?and the
> values vary from .01uf used on the HQ-100, 110, 150,?170;
> .05uf used on the HQ-120X & 129X and .022 on the
> HQ-140X. And the voltage ratings run from 500V (HQ-120X
> & HQ-129X)?to 1.4kv on the others.?Some of these rcvrs
> are similar, but they use diff. values. I assume
> the?capacitor voltage ratings used?were for DC, but
> substantial enough to handle 3 or 4 hundred vac (have never
> noticed any ac ratings for these capacitors). 
> 
> Tnx, Bill, K4JYS