[time-nuts] Tektronix TM500 extender cable ki

[Tom Miller]

Mark, that is a nice idea and much easier to construct. Count me in for two 
sets.

Regards,
Tom

----- Original Message ----- 
From: "Mark Sims" <holrum at hotmail.com>
To: <time-nuts at febo.com>
Sent: Monday, August 04, 2014 2:20 PM
Subject: [time-nuts] Tektronix TM500 extender cable ki


>I have seen the Jamma kit (I will be using their edge connectors) and 
>John's design.   Their main problem is the hassle of wiring up 56 
>individual wires.  Also that tends to be not all that reliable... wires 
>tend to break at the solder joints.
> The board that I laid out has two 40 pin ribbon cable box headers on it 
> (the layout is compatible with IDE headers that have pin 20 removed or 
> blocked).  All of the power pins on the TM500 bus use two conductors (plus 
> Tek doubled or quadrupled most of the power pins).  The other pins are 
> signal level pin that don't carry much current.  A single 28 ga ribbon 
> wire of the appropriate length should be able to do an amp or so.  There 
> should not be any major problems running most modules.
> The same board is used on the mainframe side and module side of the cable 
> (photo attached).
> A nice thing about the design is you can very easily replace the cables 
> with new ones of any desired length.
>


--------------------------------------------------------------------------------


> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to 
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>