Modified HP-71B MultiMOD Issue

[BitWiz]

(02-27-2024 12:30 PM)mfleming Wrote:  I've seen several references to a switchable turbo mode for the 41C, but the only place I've seen reference to a faster 71B is the disclaimer in Han's FRAM71 user manual. The FRAM71 may handle a higher clock speed from Han's demonstration, but the MultiMod most definitely cannot. There is enough slack in timing to handle normal variation from unit to unit. A 50% bump in bus timing is just too much for the MultiMod to keep pace. The downside of software emulation...

I had my HP-41CX Turbo'd (with a tiny switch in the charger compartment) to 2.3X back in the 80's. It still works!!