<Alas it isn't... We're both right. The 8/e panel uses diode gates (in the
<maintenance manual, printset and the physical machine on my desk). The
<8/f uses TTL gates.
The last 8e pannel I worked with was also ttl. there may have been two
versions (very likely).
The offending part was a 74L54 with a bad input. It's now mostly up and
ready for more testing.
Allison