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From: grr@cbmvax.cbm.UUCP (George Robbins)
Newsgroups: net.micro.amiga
Subject: Re: Video rams etc...
Message-ID: <684@cbmvax.cbmvax.cbm.UUCP>
Date: Sun, 31-Aug-86 19:48:36 EDT
Article-I.D.: cbmvax.684
Posted: Sun Aug 31 19:48:36 1986
Date-Received: Mon, 1-Sep-86 02:42:57 EDT
References: <848@edison.UUCP>
Reply-To: grr@cbmvax.UUCP (George Robbins)
Organization: Commodore Technology, West Chester, PA
Lines: 26

In article <848@edison.UUCP> dca@edison.UUCP (David Albrecht) writes:
>
>Moving on then, does anyone know anything about the Heathkit/Zenith
>long-persistence phosphor monitor.  It can be had for under $800
>maybe as little as $600 from mail order retailers.  This is considerably
>less than the other lp monitors I've have read about and it does have
>acceptable resolution.  It is also, however, a RGBI input monitor,
>does anyone have any experience with it and the difficulty in converting
>it to RGB (if at all possible).
>
>David Albrecht

Well, if you figure this one out, be sure to post your findings to the net!

Usually, the analog color inputs are not very far behind the digital RGBI
inputs, often there is just a crude D/A or level shifting arrangement.
The difficulty would be in converting the monitor to composite sync, since
the sync separation circuitry will be omitted or not loaded.  However, you
could probably use the separate vertical and horizontal sync signals on
the video connector if you are careful not to overload them.  You might have
to lower the value of the pull-up or terminating resistor in the monitor.

-- 
George Robbins - now working with,	uucp: {ihnp4|seismo|caip}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@seismo.css.GOV
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)