I found a junk TPN1110B power supply in my garage, and removed the two heavy diode assemblies. They are, indeed, 1N3492R diodes that are press-fitted into a small aluminum plate marked 64B83562D01 and ink-stamped 1V80739B59. Yes, the last digit is a "9" not a "7" on both of these diode assemblies. No matter, they're both NLA from Motorola Parts.
Now, for the good news: Mouser Electronics carries exact-replacement diodes for the 1N3492R, made by NTE as part number NTE5963, for just $ 4.11 each. The NTE diodes have a higher PRV rating of 400 volts. An alternator repair shop can replace the diodes in less than a minute, but the job can also be done with a large bench vise and a couple of sockets. 73, Eric Lemmon WB6FLY -----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of kk2ed Sent: Thursday, September 18, 2008 9:49 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Micor TPN1110A power supply parts ID Thanks for the reply/suggestion. A stud mount of greater current rating may be the way to go. I could just drill out of the existing mounting holes and use the stud mount and a nut/washer combo. However, after googling till my eyes fell asleep, I found a few sources on the web for the original diode - which turns out to be a 1N3492R. So that takes care of the diodes - <snip> Eric KE2D <major snip>
