dickson@aludra.usc.edu (Jeffrey Dickson) (10/04/89)
I've exhasted the resources of my local BBS's on this problem. Perhaps someone
out here can help me.
A friend of mine picked up a card at an auction marked PERFECT 80. We can't
seem to figure out what it does. It does NOT fit into the 80-column expansion
slot on the //e but instead in the 1-7 interface slots. There is no manufac-
turer or date marked. The card has two sets of pins marked IN and OUT. Each of
these, has two pins identical to the speaker jack on the motherboard.
We connected a voltmeter to the OUT pins and messed around. Typing PR#x (with
the card in slot x) made the pin voltage jump from 0 to 0.665 VDC. The display
was disabled, as expected. As we banged on the keyboard, the voltage rose by
0.001 V for each 10 characters; up to a max of 0.775 V. I thought is this some
kind of ancient 80 column card with a composite output. Typing home did not
lower the voltage however. Entering a large number of RETURNs did make it drop
in discrete steps back to its original 0.665 V.
Anyone have a clue ????????henrym@pro-europa.cts.com (Henry Malmgren) (10/06/89)
>A friend of mine picked up a card at an auction marked PERFECT 80. We can't
seem to figure out what it does. It does NOT fit into the 80-column expansion
slot on the //e but instead in the 1-7 interface slots.
It's probablly an old 80 column card build for the ][+, which didn't have a
special expansion slot.
UUCP: crash!pro-europa!henrym
ARPA: crash!pro-europa!henrym@nosc.mil
INET: henrym@pro-europa.cts.com
APPLELINK PE DALAMAR11paul@pro-europa.cts.com (Paul Hutmacher) (10/06/89)
Comment to message from: gem.mps.ohio-state.edu!usc!merlin.usc.edu!aludra.usc.edu!dickson@tut.cis.ohio-state.edu (Jeffrey Dickson) > A friend of mine picked up a card at an auction marked PERFECT 80. We can't > seem to figure out what it does. It does NOT fit into the 80-column expansion > slot on the //e but instead in the 1-7 interface slots. There is no manufac- > turer or date marked. The card has two sets of pins marked IN and OUT. Each of > these, has two pins identical to the speaker jack on the motherboard. It sounds like an old slot three 80 column card to me. | UUCP: [ucsd, nosc] !crash!pro-europa!paul | "All that is necessary for the | | INET: paul@pro-europa.cts.com | triumph of evil, is for good | | ARPA: crash!pro-europa!paul@nosc.mil | men to do nothing." |