TurboTrans+ / Turbo Access

[Diddl]

I'm searching for documentation to a special hardware, the fastest floppy speeder ever build for a 1541 drive: TurboTrans+ (successor of  Turbo Access).


Has anyone done something with the hardware of this speeder? Or has anyone made a analysis of the firmware? Or could anybody sell me one or borrow one?


I have build this hardware into one of my 1541 drive using a FE3 (1541 with 512KB RAM), but my hardware doesn't have same banking system cause I don't know how does it work:

• How does the banking work?
  
• How is the memory model exactly?
  
• Is there something special on this hardware?
  
• The parallel cable, how does it work from sight of the firmware (IO address, IO description)?
  

If someone could borrow me such a TurboTrans board, I would need it some weeks and I will pay for it.

If someone would sell me one, please send me an offer.