[Info-vax] rx2620 power supplies / VRM voltage low

[George Cornelius]

In article <13f589b7-e460-44b4-8c95-5c6ec6bbff87 at googlegroups.com>, Steven Schweda <sms.antinode at gmail.com> writes:
>> So is it a simple modification to, say an
>> Allen wrench (a length of hexagonal rod)?
>> Like maybe a hole drilled in the center? 
> 
> I assume that he's talking about the Torx screws,
> not the hex-hole things.

I'm not sure there was any goal in mind in his
last post other than getting to the punch line.

>                   A Google search for, say:
> tamper-resistant torx offers many pictures.
> 
> Drilling your own hole in a hardened tool (even a cheap
> Chinese one) is more trouble than buying one which was
> drilled before hardening.

Yep.  50+ years since I learned to heat treat tool
steel.  You anneal it, work on it in that form,
then temper it afterwards.

My toolmaking project was a centerpunch. Others
made screwdrivers.

Project for an earlier phase of the class, sheet
metal fabrication, was to take some really hefty
1/8" aluminum sheet stock and form a heavy duty
chassis for a tube based 300 volt power supply
I was building in my home workshop (think amateur
radio).

Now Torx is often chrome plated or otherwise super
hardened, so likely a bit tougher than the tool
steel I had available.

So I won't do it.  My girlfriend - gone now - had
a brother, not to mention an ex-husband, trained
in tool and die making at a school in your neck of
the woods (Dunwoodie), so there's no lack of access
to people who _can_ do it.

That brother had a small business here in town at
one time whose sign was based on a silhouette
of a man with a hammer fashioning, presumably,
a piece of red hot metal metal into something
of value.

I see an employee of his now has a welding shop
down the street from me with a sign that is
clearly based on the one his employer once had. 

A hammer in the right hands creates works of
art.  Or maybe just a little thing like a
screwdriver.
 
Thanks for the info.  Last time you gave me
advice it had to do with using a 3100/30 in
diagnostic mode to change the auto-spin-up
settings on scrap RX23's.

George