Originally Posted by hap
Originally Posted by seanriddle
Those are both E revision dies; you think that has anything to do with it? Remember when I hooked up some TMS1100s to the Entex Baseball 3 cap and resistor to measure its frequency? Es were faster than Bs. Measuring the frequency slowed it way down, but it's possible that the ratio of B speed to E speed is correct. That would make Es 11-12% faster.

Ah! Yes, that must be why.
I've still got several of Ranger's Microvision carts along with some that I bought, and I found duplicate carts where one has a B-revision and the other has an E. The PCBs are different revisions, but the OSC cap and resistor are the same. I'll put the carts back together and confirm that E runs faster.