Eudimorphodon
Veteran Member
Probably jumping the gun asking now, since I don't yet have the thing in hand to play with, but I'm curious: I remember sources like 80 Microcomputing printing on multiple occasions simple speed-up hacks for the TRS-80 Model I; a 50% speed-up from 1.77mhz to 2.6mhz was a really common mod, and doubling all the way to 3.54mhz was also apparently usually possible with just a little tinkering with some spare gates on the board. (And maybe swapping the Z80 for a Z80A.)
Does anyone remember if similar 50%-100% hacks were easily possible on the Model III as well? I know from flipping through the service manual that it's a little bit more sophisticated of a machine than the Model I, since it includes that WAIT circuit for the video memory (among other things) so maybe it's more locked into the lower speed, but if it's possible to wring a little more out of it on the cheap I might be interested in that.
(The main application I have in mind for this is Orchestra 90; faster is definitely better for that.)
Does anyone remember if similar 50%-100% hacks were easily possible on the Model III as well? I know from flipping through the service manual that it's a little bit more sophisticated of a machine than the Model I, since it includes that WAIT circuit for the video memory (among other things) so maybe it's more locked into the lower speed, but if it's possible to wring a little more out of it on the cheap I might be interested in that.
(The main application I have in mind for this is Orchestra 90; faster is definitely better for that.)