[Heath] Yet more on my IP-27...

[Robert Groh]

If it makes you feel any better, your lesson is an excellent object lesson for 
all of us who rebuild old stuff - don't leave those old electrolytics in there!  
If they aren't bad now, they will be shortly.  


Oh, and a giant 'atta boy!' for persisting and getting that bad boy all fixed 
up.  Nice work.

73
Bob, WA2CKY




________________________________
From: Kenneth G. Gordon <kgordon2006 at frontier.com>
To: Heath at puck.nether.net
Sent: Thu, June 21, 2012 5:24:10 PM
Subject: [Heath] Yet more on my IP-27...

Well, the unit is back on the bench. Poop! :-(

While I was characterizing it, the 3000 MFD 75 VDC capacitor decided to 
"take a hike": i.e., it shorted out internally and blew two of the four diodes 
in 

the FW bridge along with the fuse.

All transistors appear to be OK.

This makes 3 of the electrolytics in that PS which have either been bad to 
begin with, shorted out while I was fixing the PS, or shorted out after I had it 

working.

I am going to replace ALL of them with new ones.

Gee....

Now, after I replace the caps,  all I will need to do is to find a can of Krylon 

"Make it Suede" #1241 Buckskin to re-do the cabinet. So far, no luck on that 
yet either.

vy 73,

Ken W7EKB
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