My suggestion is to join the Greenkeys list.
Oh, no! With a model 15 or at least 32 this would be the right place.
But the reader run thing is a pure computer related topic. On topic
here, off topic on Greenkeys I guess.
Do you have that little reader control thing in your 33? There's
something that goes into the base (NOT the machine itself) if I
remember. It sometimes gets lost. And then the reader does not work
anymore. I think it's related to the DEC modification.
Kind regards
Philipp