<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML xmlns:v = "urn:schemas-microsoft-com:vml" xmlns:o =
"urn:schemas-microsoft-com:office:office" xmlns:w =
"urn:schemas-microsoft-com:office:word" xmlns:m =
"http://schemas.microsoft.com/office/2004/12/omml"><HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.23520">
<STYLE></STYLE>
</HEAD>
<BODY lang=EN-US background="" link=blue bgColor=#ffffff vLink=purple><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<DIV>I worked with a lot of Riker and Richmond Hill gear in the early 70's, and
we built some of our own modules too for an SEG. Each Riker module
consisted of a mother card with a number of daughter cards which were sort of
"building blocks" that could be combined to perform various functions. I
can't find any pics of the electronics, but here's a pic of the control panel we
built. The switcher consisted of an RCA TS-40, an RCA solid
state mix amp, and the Riker SEG. We bought the Riker controls which you
can see on the right side of the panel from a surplus dealer, Derf Electronics,
and then built the electronics to go with it. The joystick in the upper
center controlled a positioner circuit for the wipe patterns that we added to
the Riker SEG.</DIV>
<DIV><IMG border=0 hspace=0 alt="" align=baseline
src="cid:FF8E9AA354A6479BAE3D38112E1CF8D9@dcidell2v2"></DIV>
<DIV> </DIV>
<DIV>To keep this somewhat on topic, there were 2 quads feeding this
switcher! We also had a factory Riker proc amp that I kept for years but
gave away along with the manual to another list member some years
ago. Then there was a Riker sync generator and companion color
standard. It had hundreds of diodes in the counter circuits, and they were
prone to failure. When we got a Tek generator, I think the Riker went to
the scrap pile!</DIV>
<DIV> </DIV>
<DIV>Don Norwood<BR>Digitrak Communications, Inc.<BR><A
href="http://www.digitrakcom.com">www.digitrakcom.com</A></DIV></BODY></HTML>