[net.micro.cbm] TPUG and foolproofing your 4040

jose@utcs.UUCP (Jose Antonio Dias) (03/17/85)

(It has come to my attention that this line is NOT(?) nescessary!)

Hi ho!

I finally decided to make the device described on page 34 of February's TPUG
magazine.  In that article a little add-on device attempts to make the 4040
a little more "humane."  This device attempts to detect when the power is
either going up or coming down.  In other words: if the power supply is not
appropriate then don't let any charge go to the read/write heads.  Fine!  This
is something I would like to have as an integral part of my drive, since I
allready have a green led telling me that the power is on...

It all sounded like a great idea, so I bought the parts and started putting the
thing together.  But then I came upon a little snag: the article uses
18 and 9 volts to detted the power change.  My problem is that I do not know
which pins provide these voltages.  My best guess would indicate that they
are available from the power transformer on one of the pins.  My question is
simple:  Which pins supply the above voltages?  I would have tryied to get the
info from TPUG's own BBS, but they've been having a little problem...

Have you heard the latest?  About 2 weeks ago someone, or someones, broke into
TPUG's office at Avenue road and stole all their computer equipment.  This
poses a great problem, aside from not having the BBS going.  What to do about
the user's list?  The list of users was kept on one, or more, hard-disk but now
this list is in the possession of someone else.  What can we do...

Jose A. Dias			       University of Toronto Computing Services
 
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    The above ascii characters are not, have not ever been, or will ever
    be, the opinion of anybody, being, or super-intelligent shade of the
    colour blue.    They were just a fluke.    They were put together by
    randomnly selecting phrases from Vogon poetry...
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		...{decvax,ihnp4,utcsri,{allegra,linus}!utzoo}!utcs!jose
						 (As the crow flies... :-)
-- 

Jose A. Dias			       University of Toronto Computing Services
 
-------------------------------------------------------------------------------
    The above ascii characters are not, have not ever been, or will ever
    be, the opinion of anybody, being, or super-intelligent shade of the
    colour blue.    They were just a fluke.    They were put together by
    randomnly selecting phrases from Vogon poetry...
-------------------------------------------------------------------------------

		...{decvax,ihnp4,utcsri,{allegra,linus}!utzoo}!utcs!jose
						 (As the crow flies... :-)