ASR 43 adapter cable

I finally got around to building my ASR-43 adapter, it seems to
work as expected (ie, the reader runs and stops at the right times) but
it could use some more testing.  Even though I don't have any proof yet,
I think the reader might be reading and advancing the tape and just 
buffering the next character, but I haven't been able to test this yet
nor has it caused any problems if it is.

You need my reader run modified M8655 (see: http://pdp-8.org/flow.html )
to start with, then it's just special cables.  Radio Shack has a little
RS-232 patch box I built the two required adapters in.

                       MALE     FEMALE

                          2 --- 3

                          3 --- 2

                          4 -+
                             |
ASR-43    F <-> F         5 -+                      PDP-8
MAIN      ADAPTER                                   M8655
                          7 --- 7               w/reader run mod

                          6 -+
                             |
                          8 -+
                             |
                         20 -+

                             +- 4
                             |
                             |
                             |
                             |
                             |  (long wire)
                             |
                             |
                             |
                             +- 5

                          2 --- 2
                          3 --- 3
                          4 --- 4
                          6 --- 6
ASR-43 AUX                7 --- 7            ribbon cable    ASR-43
                          8 --- 8                            punch/reader
                         17 --- 17
                         18 --- 18
                         19 --- 19
                         20 --- 20
                         23 --- 23

I buy LINC, PDP-8, PDP-12 and PDP-15 parts, systems and documentation. Write me at nabil@pdp-8.org.