Hi JIM.

29-Dec-02 23:55:00, JIM HOLSONBACK wrote to ALL


 JH> Hello, ALL.

 JH> So, Roy, Jasen, and Matt, if you want to pay for the postage for
 JH> either a 32MB DIMM or a CDROM drive, drop me an email to
 JH> jim.holsonback{at}juno.com and let me know which one to plan on
 JH> sending.  Sorry, Jasen, postage to AUS may be more then the thing
 JH> is worth, even for "free".

The DIMM will fit in a regular envelope... postage would probably be a buck
or so,  (I don't think it's worth the bother at the moment though, I've got
enough 32M dimms) and all my other (working) systems take 72 pin simms.
it's probably cost more in money conversion and other hassles.

 JH> I'm still amazed that those itty bitty now-burned up parts were
 JH> rated as 12V 3A diodes.  Maybe I'll put in some stronger
 JH> replacements.

 JH> I think I need two singles to fix it, and I think I'll try to find
 JH> some stronger parts. If I bought a bridge, that would end up
 JH> making 30VDC or so, wouldn't it?

only if you use both the + and - terminals, if you only use the + and the
centre tap you'll get the same 15V as before.

 JH> The circuit breaker bulb reads short in both directions, so may be
 JH> good, but I don't trust it anymore, as it let both of the diodes
 JH> get burned up.  I know I have an in-line fuse holder here, so
 JH> think I'll add one of those in the line out from the +12V
 JH> terminal.

take it out and hook it up in series with a headlamp and the car battery.
if it doesn't go out after a few seconds it's not working.

(60w dipped beam is about 5A so should trip the breaker pretty quickly)

 if it's not working you couild try banging it on the table a bit...

 JH> There's an unused screw on the output terminal strip, so I think
 JH> I'll try to find something like a 24 Ohm 25W or so resistor to put
 JH> in there, as a current limiter (to about 2 AMPs), and if I ever
 JH> try to use this thing as a trickle charger again, I'll use that
 JH> terminal for the +12V output.

use an 20W lightbulb, (like an indicator lamp) they have a lower resistance
when cold which allows for quicker charging while still providing a
current-limiting function if a fault develops.

 -=> Bye <=-
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