There is the problem ... the manufacturers put the smoke in each part very carefully ... then you let it out ... That will do it every time ... Neil - WA6KLA
----- Original Message ----- From: Ian Miller <[EMAIL PROTECTED]> Date: Friday, December 15, 2006 2:34 pm Subject: [Repeater-Builder] Re: tripp lite pr-25 > Thanks for all the help fellows. > I will contact skipp and see if he has the reg. board for this unit. > > I made the mistake of hooking the power supply up to a car battery > - > backwards - and poof - all the smoke came out. From what I can see > C6 > on the reg. board is blown - the bridge rectifier is ok, and there > is > about 22 volts DC getting to the reg board, but it stops there. > > The board number is 66-214D if that helps > > 73 > Ian > VA2IR > > --- In Repeater-Builder@yahoogroups.com, "Mike Short" > <[EMAIL PROTECTED]> wrote: > > > > I am in the process of repairing a Tripp Lite 50A power supply. > > I bought a regulator board from Skipp, who frequents this site, > and > will > > graft it in to the power supply in place > > of the defective one. The pass transistors are 2N3055's, which > are > common in > > this application. > > > > Just a thought. > > > > Mike > > AI4NS > > > > > > > > > > Yahoo! Groups Links > > > >