VECTORLIST - The Mailing List For The Technical Discussion of Vector-Based Arcade Games

April_2001
RE: VECTOR: Scope Dual-Input Coupler ???


From: Rosenzweig, Joel B ( )
Date: Fri Apr 13 2001 - 08:11:14 CDT


The last time I did this (I used a Tek 2445), I remember that I needed to
hook up an inverter to the Z signal to match the scope to the game. I used
a TTL chip for this purpose and it works great. If you don't do this, all
you will see are the retrace lines. That looks cool, too, but that wasn't
what I wanted. :-)

Joel-

-----Original Message-----
From: Bret Pehrson [mailto: ]
Sent: Thursday, April 12, 2001 8:28 PM
To:
Subject: RE: VECTOR: Scope Dual-Input Coupler ???

I'll bet that you are right -- and yes, the Z input is on the back of the
scope.

Ok, I just need a "Y-adapter" then -- anything I should look for in
particular? Know of a decent source?

Thanks

> -----Original Message-----
> From:
> [mailto: ]On Behalf Of John Robertson
> Sent: Thursday, April 12, 2001 4:38 PM
> To:
> Subject: Re: VECTOR: Scope Dual-Input Coupler ???
>
>
> A wild guess here, but perhaps that is a Y-adapter, or splitter.. I bet
> there is a loop on the rear of your scope and this is where you would
> insert the Y-adapter to enable the input of a signal.
>
> John :-#)#
>
> At 04:16 PM 4/12/2001, you wrote:
> >I've successfully run my Asteroids Deluxe on my Tek 2235 scope (wow), but
> >I'd like to connect up the blanking (Z input) to the scope as well.
> >
> >The docs indicate that I need a "dual-input coupler" -- I don't have one,
> >can't find anything about it on the Tek site, and web/group
> searches return
> >zilch.
> >
> >Anyone care to elucidate what a dual-input coupler is and where I can
> >acquire one.
> >
> >Much appreciated.
> >
> >---
> >Bret Pehrson
> >


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