Re: Interference-SSTC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Fucian-at-aol-dot-com>

In a message dated 2/21/02 10:38:11 AM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

<< Matt,
 
 What equipment is getting interfered with?
 
 I put a little RFI line filter between my SSTC circuit (which operates at 
about
 400 kHz) and the power cord.  These are available surplus for a few bucks. 
Make
 sure you use a good ground, and see that your DC supply has adequate RF 
bypass
 caps across it.  This means ceramics, mica, or plastic film caps in addition 
to
 whatever electrolytic smoothing capacitors you may have (which do not bypass 
RF
 very well.)  I use these measures on my FET coil and have not had any
 complaints or equipment go nuts.
 
 -Carl    >>


Im getting TV and radio interference.I have put my 555 timer into a metal 
enclosure including a regulated PSU.Do i conncet this to house ground?

Also, I am having timer chip probs.They refuse to work with 50% duty cycle 
config.They work fine with the 2 pot version.Why?

Matt