Now I've gotten 13.9 volts coming out of the power supply, but as soon as I put a load on it, the voltage drops out to nothing. Where to next.
Mathew -----Original Message----- From: Jamey Wright [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 26, 2005 6:27 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Digest Number 2941 I have had few where the TIP-29 was bad. Replaced the 723 and TIP-29 and solved my problem Date: Tue, 25 Jan 2005 18:05:45 -0800 From: Mathew Quaife <[EMAIL PROTECTED]> Subject: RE: Transistor Checking Well here is the funny part. On one of the supplies, I did indeed find a bad 3771, but before I changed it, there was still 12 volts at the lugs. I then took the 723 and put it in another ps, which it caused the resistor connected to tip29 npn transistor to smoke. So back to the first power supply. I replaced the bad 3771, all the rest are ok, put in a new NTE923 chip, and now no voltage at all out the lugs. Pull the SCR from the bottom, left it hang, and still no voltage. Only thing left is the TIP29. Any thoughts. Mathew Yahoo! Groups Links Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
