TurboMaster v3 4 MHz Accelerator | Master Adapter (GEOS) For Commodore c64 c64c
TurboMaster v3 4.09MHz Accelerator
Master Adapter for use with GEOS 64 2.0
for use with Commodore 64, 64c,
Constructed by: ToTs RETRO
Featuring a Fully Licensed and Authentic Copy of "TurboMaster Jiffy Dos Rom v5.05"
TurboMaster v3 Specifications
4.09 MHz speed
4x the speed of Commodore 64
64k Ram installed in TMv3
Includes a new W65c02S6TPG-14, tested 14mhz CPU, which we only use 4.09MHz
Brass Screw Inserts
High Quality 3d Printed Cases 30 to 40% infill. Very Sturdy.
Two colors available Blue, Red special order colors can occur with proper communication allow extra time .
All the chips on the logic board are socketed which will allow for easy service work should it be required some decades from now.
All prices include fully assembled and tested 100% units (each sold separately), Commodore 64, c64c, GEOS 64 software not included, you must supply your own
I ran the TurboMaster v3 on Pole position, took 1st position in race! It is super fast. Average 4x faster than standard C64 cpu
Notes: this is not compatible with all software (just like some jiffy dos will not work with some programs) I have tested it extensively with my Commodore 64c and found many programs do work well. Results will vary depending on your unit and the functionality of your C64
About the Case's
A 3D printed reproduction of the TurboMaster v3.
These are Printed and Constructed by ToTs RETRO
This case comes to you equipped with embedded brass heat sets and screws
to not only keep your board secure in the case, but also keep the lid tightly mated to
the base. This case is presently available in all Blue/White or Red/White PLA. (See photos)
About the Master Adapter
When using the Master Adapter with the TurboMaster v3:
* if using REU, place REU on bottom slot, TMv3 in top slot and Master Adapter switches all 4 to the right (as it’s installed and you facing the c64)
** if using a GEO Ram, place the GEO Ram in the top slot and the TMv3 in the bottum slot all 4 switches turned to the left.
*** when using the Turbo Master v3 on its one place in the bottom slot and all switches to the right.
****you can also use the TurboMaster v3 directly into the cartridge slot of your c64 without the Master Adapter!
More info…
This device has been fully tested and proven to function with a stock TurboMaster CPU and original Berkley Softworks 512K GEOram cartridge operating under the GEOS 2.0r operating system on a stock Commodore 64 computer. It has further successfully been tested with a Commodore REU.
The original design concept for this interface was to allow the user to use either a Commodore REU (ie: 1764 Commodore Ram Expansion Unit) or the GEOram cartridge from Berkley Softworks. Out of the gate, the original GEOram cartridge worked fine, however during Schnedler Systems development, considerable problems were encountered during the development process to get the Commodore REU to function correctly.
At the end of Schnedler Systems involvement in Commodore technology, the MasterAdapter project was abandoned before development had been completed.
All of the remaining information that exists for this device can be found at archive.org
https://archive.org/details/turbo-master-cpu-owners-manual-1
An instruction manual to assist you in the deployment of your MasterAdapter, and can also be found there.
No compatibility issues have been found between Turbomaster/Master-Adapter/GEOram and differing version of the Commodore 64 mainboard. This however cannot be said for REU functionality. Testing to date has shown that this combination functions well with the following mainboards (250466, 250469.Rev.3 ,250469.Rev.4, 250469.Rev.A). The older the board, the more artifacting is seen. Most long boards show varying degrees of artifacting, some so bad that it is not usable.
These are made to order, so please allow up to 1 week lead time before shipment.
Any Questions do not Hesitate to ask
note: the TurboMaster v3 can be used with a c128 in 64 mode only for some programs. I suggest getting it only for use with a C64, c64c
If you are purchasing internationally, all duties and taxes are your responsibility (the purchaser) to take care of when the items arrive in your country. ToTsRC/ToTsRETRO is not responsible for contacting you when duties are due. You must do your due diligence and plan accordingly with your countries end of line delivery, thank you.
some very good informational videos about GEOS and using a REU
a review on the TurboMaster v3 by Commodore Sam here..