Just finished the refurb of this machine, had to manufacture a couple of hinge pins for the lid. It is a nice machine.
Still no luck with reading at anything higher than 4800, the literature I have seems to suggest 400cps for the GNT29 Reader. Not sure what's wrong.
It is solid at 4800 which I am very happy with.
Tried with a commercial serial cable still only worked up to 4800. But I can live with this, no problem.
As to the punch this has the GNT36 which should run at up to 75cps.
I would really like to try to punch at 600 baud but this is not a speed option on the Altair.
Do you think this could be a future option in a firmware update?