Could be a protective short circuit resistor acting sort of as a fuse too. The resistor should blow if you get a direct short in the HV, if the resistor is rated at 25 watts or so.
On 12/2/06, Brett gazdzinski <[EMAIL PROTECTED]> wrote:
I usually wind thinner wire around something to give the correct shunt, cheaper and smaller then a big wire wound resistor... The power supply looks really nasty, it does not look like there are many good parts on it... Brett N2DTS > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of John > Coleman ARS WA5BXO > Sent: Saturday, December 02, 2006 8:41 PM > To: 'Discussion of AM Radio in the Amateur Service' > Cc: [EMAIL PROTECTED] > Subject: RE: [AMRadio] PW Supply > > It may be the only path to ground for the power supply and > measuring the > voltage across it may be the way to measure current from the > power supply. > > A 10 ohm resistor with 1 volt measure across it represents > 100ma current. > This is common practice for the way I measure power supply current. > > BTW I found this really neat site with some good info on > power supplies > http://www.qsl.net/i0jx/supply.html > Hats off to Tony, I0JX > > John, WA5BXO > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Jack Schmidling > Sent: Saturday, December 02, 2006 7:12 PM > To: Discussion of AM Radio in the Amateur Service > Subject: [AMRadio] PW Supply > > > I am having some quality time with my new supply and have lots of > questions about things I do not understand. > > First one is, this is a choke input with a pair of 4mf's across the > output of the choke and a monster 100k bleeder. > > What bothers me is that there is a 10 ohm, many watt resistor between > the negative side of the caps and ground. > > What is this for? > > js > > > -- > PHOTO OF THE WEEK: http://schmidling.com/pow.htm > Astronomy, Beer, Cheese, Fiber,Gems, Sausage,Silver > http://schmidling.com > > ______________________________________________________________ > AMRadio mailing list > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Partner Website: http://www.amfone.net > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > > > > ______________________________________________________________ > AMRadio mailing list > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Partner Website: http://www.amfone.net > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
-- "There is nothing more uncommon than common sense." -- Frank Lloyd Wright ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
