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Dumb question about Tek 7XX4 mainframes

B

BFoelsch

Jan 1, 1970
0
I've become curious about the way these things operate when both vertical
and horizontal are in ALT mode.

Under these conditions, LEFT vertical is swept by RIGHT horizontal, and vice
versa. Using, for example, 7904A w/7A19 - 7A19 - 7B85 - 7B80.

Why? Seems counter-intuitive. Or am I doing something wrong?

Thanks in advance.
 
F

Fred Abse

Jan 1, 1970
0
I've become curious about the way these things operate when both vertical
and horizontal are in ALT mode.

Under these conditions, LEFT vertical is swept by RIGHT horizontal, and
vice versa. Using, for example, 7904A w/7A19 - 7A19 - 7B85 - 7B80.

Why? Seems counter-intuitive. Or am I doing something wrong?


It makes sense if you're using a two-slot module, like a 7S12 that goes in
the middle two slots, ie. right horizontal and left vertical.
 
B

BFoelsch

Jan 1, 1970
0
Fred Abse said:
It makes sense if you're using a two-slot module, like a 7S12 that goes in
the middle two slots..............................

Thank you for a very sensible and informative answer!
 
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