Thanks Jim. One more question. I have a spare multimeter. How can I test it to see if it is good before installing. My first thought is to check with an ohm meter, but I wonder if I would damage it by passing too much current and pegging the meter. Any tip on a quick way to test it.
Greg W5RY -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Wilhite Sent: Monday, March 05, 2007 9:49 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Meter Sticking SB-220 Greg: Try removing the meter and carefully take the face off. Look between the coil and surrounding core for bits of metal or debris that should not be there. If there is anything, you should be very careful here, remove the debris and reassemble the meter. Do not use compressed air or anything that will cause the meter to peg hard, for it could bend the needle. If it is metal, you will have a tough time getting it out since the magnet will hold it in place. Good luck. If that doesn't work, there are meter shops that will perform the service for you. Maybe near where you live. If you don't feel confident to do this, then check with any big airport for avionics repair shops then ask them about meter repair shops. Many shops that repair Simpson 260 can do this easily. If you are steady enough, study the meter movement and disassemble it for cleaning then reassemble. This requires the patience and steady hand of a watch maker which is another place that might be able to help. 73 Jim W5JO ----- Original Message ----- From: "Greg Schultz Sr" <[EMAIL PROTECTED]> To: <AMRadio@mailman.qth.net> Sent: Monday, March 05, 2007 9:29 PM Subject: [AMRadio] Meter Sticking SB-220 >I have the multimeter on my amp(sb-220)that sticks above >zero. I tried > adjusting the zero on the face but could not get it to > zero. I remember > reading some time back several emails on this topic. Can > anyone suggest > a fix other than replacing - these meters are very hard to > locate. > > Thanks for any help > > Greg W5RY > > ______________________________________________________________ > 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:AMRadio@mailman.qth.net > To unsubscribe, send an email to > [EMAIL PROTECTED] with > the word unsubscribe in the message body. > > ______________________________________________________________ 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:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. ______________________________________________________________ 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:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
