Xref: utzoo rec.photo:2272 rec.video:3252 sci.electronics:2702
Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!uw-beaver!uw-june!uw-entropy!dataio!pilchuck!ssc!markz
From: markz@ssc.UUCP (Mark Zenier)
Newsgroups: rec.photo,rec.video,sci.electronics
Subject: Re: Video inversion (build w/ chips, cheap sources of)
Message-ID: <1155@ssc.UUCP>
Date: 5 Apr 88 18:41:30 GMT
References: <637@nunki.usc.edu>
Distribution: na
Organization: SSC, Inc., Seattle, WA
Lines: 18
Keywords: chips, cheap boxes
Summary: Video amps

In article <637@nunki.usc.edu>, cyamamot@nunki.usc.edu (Cliff Yamamoto) writes:
> 
> 
>     This circuit that I'm trying to build seems so simple, I'm surprised I
> can't find anything on it.  I'm interested in building (or locating a cheap
> source of) video inverters.  ...

The uA733 and NE592 are 50-100 mhz video amps that are cheap $1 - $1.50
that have an inverted and non inverted output.  They are pin compatible
differential amps with the gain set by a resistor.  I used one as a video
output to convert from a MC6847 to a TTL monitor and found that they
drift a bit for a DC amp, but they were spec'd as an AC amp anyway.  The
output is limited in amplitude but is a couple of volts.

Maxim has some new video opamp chips that look hot.  The max452 and the
max455.

Mark Zenier