Re: PFG Lisa

From: Dr. Helmut Post <helmut_post_at_email.domain.hidden>
Date: Thu, 13 Oct 2005 14:13:23 +0200


Hi Phil and greetings from Bavaria (Franconia, the northern part of Bavaria near Nuremberg)!

The black clip attaches to PIN 1 of the 74LS137 at position 6A on the Lisa I/O board, the red clip attaches to PIN 5 of the same 74LS137 at position 6A. That's all!
I hope that instructions could help you a little further.

Helmut

> As far as I know, the black wire is Ground
> (I'm shure)
> and the red one is frequency output
> (I'm not so shure, I only remember by brain) and I used that last time
> more than a decade ago ...
> It was used to get a synch. signal to an external unit. e.g. a widget
> drive or an frequency generator or an external time base in a AC
> AD-converter.
>
> Do you have an Oscilloscope?
> Plug it in and check, what you see on the screen.
> or
> an frequency counter on a Digital Multimeter
>
> greetings TOM from Bavaria
>
>
> Am 13.10.2005 um 00:31 schrieb Philip Lord:
>
> > Hi Again,
> > I just got a "programable Frequency Generator'. Unfortunately I do not
> > have the manual.
> >
> > Can anyone tell me where the red and black wires go to?
> >
> > Much thanks
> >
> > Phil
>
>
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Received on 2005-10-13 05:16:37

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