M868 simple
dectape control $100.00 plus shipping
The infamous TD8-E. Don't use this unless you can't get a "real"
DECtape control, which would be a TC01 or TC08. Of course, for use
on an Omnibus PDP-8 (8/e, 8/f, 8/m, 8/a), those also require the
positive I/O bus interface, data break interface, and possibly a
negative bus converter. So on second thought, if you have an
Omnibus 8, maybe the TD8-E isn't so bad.
M8650 console interface $100.00 plus shipping
Seems rather pricey to me. Now if I could get the M8655 for this price...