Cracking open Brick-type power supplies

A friend of mine routinely had to crack open his TRS-80 PSU's. He did this with some care, but mostly a plastic mallet and a chisel. Once the deed was done, he used MEK to glue the case back together. This seemed to me like a lot of trouble. I'd put in an externally accessible fuse holder arrangement of some sort so I didn't have to do this more than once. Dick ----- Original Message ----- From: Fred Cisin (XenoSoft) &lt;cisin(a)xenosoft.com&gt; To: &lt;classiccmp(a)classiccmp.org&gt; Sent: Sunday, May 21, 2000 10:24 AM Subject: TRS-80 Model 1 Power supply (was: Warning: Most of DejaNews :-) > > Or, could tell me how to build/repair one? > > The good news is that MOST (but certainly not ALL) problems with the model > 1 power supply are nothing more than a blown fuse! All that is usually > needed is to solder in a new fuse. > > The bad news is that the case is glued together. > > Fortunately the glued joint tends to be substqantially weaker than the > rest of the case. > > Although some, such as Tony, might have a much better way to open the > case, brute force will usually do. Swinging it by the cord (now I'm SURE > that Tony would have a better way :-), slam it down onto a carpeted floor. > Gradually increase the level of violence until it cracks open, without > getting rough enough to shatter it all over the place. > > Solder in a new fuse, and glue the case back together. > > > A Dremel saw might do the job, but this is the technique that we used at > the 6th? West Coast Computer Faire to repair half a dozen of them. (Show > management insisted that there was NOTHING WRONG with the power provided) > > > I sold some of my model 1 stuff at VCF, and Eric got most of the rest. > > -- > Grumpy Ol' Fred cisin(a)xenosoft.com > <A HREF= "http://www.xenosoft.com/dogears" >DogEars</A> >