= On original designer's webpage. I've been happy with how it was for a long time (just mirrored copies), because people knew where to find it, and contents was still accurate.
Unfortunately HansO pulled most of his pages recently (thx. Hans, for hosting a copy so long!), leaving -sometimes partial- copies in random places like this. Somewhat silly situation IMO with me still around & having my own site. So - memory cycles, M1 cycles, wait cycles, duty cycles, clock cycles & more @ Bitcycle.org:
If you're hosting one of those old mirror copies, I recommend you replace that copy with a link to above page. Easier for you, easier for me & I intend to keep that online for a loooonng time. Changes:
In case you were considering a turbo upgrade: I think Repair-Bas may still have some 7 MHz. kits ATM, suitable Z80 chips are still for sale at large online sellers like Digikey or Farnell, your local electronics shop may still have a Z80B on offer, and 74HCxx logic can still be bought 'everywhere'.
Btw. if you're hosting a copy somewhere that includes my e-mail address in plaintext, I would very much appreciate if you could remove that (at least the e-mail address, that is). Not that you can't find my e-mail elsewhere, that the one on my homepage has heavy spam-armouring, or that I'm getting much spam, but... I wouldn't want to get more. B-) Thx...!!
Thanks! This is a great circuit,which has served me well for years (thanks to my MSX friends who made the design into real hardware).
good work to preserve it, I think I made a personal copy of the design long ago when it was on .dds.nl !
Maybe it is a good idea also to have a little photo of it, like the ZX mod you have online?
BTW, it's interesting to compare speeds of different turbo-extensions. Say, with a simple program like this:
10 defint a-z:i=0
20 oninterval=30 gosub 40:interval on
30 i=i+1:goto 30
40 locate0,0:print i:i=0:return
(if you have PAL computer, replace 30 with 25 in line 20)
As for me, i got the following output for Yamaha YIS-503III -
- Native Z80 about 250
- Z180 accelerator at 5.7 Mhz about 380 (zero extra waits, refresh on)
Hello, i´m planning to contruct the double pcb for the MSX Super Turbo using the original design that is in the web, i wonder if anyone have the final files to make photolithos for contruct the double pcb, i dont have pcb heatstroke, but it is possible that i could to make build towards any online or local shop. Other way will be redesing with any pcb design program, i wonder if you know if any of this programs could support import files, like jpg,gif, to can import the image from the web and make more fast the redesign. Ok, i suppose that anyone wont sell the pcb buil it or only the pcb, for this i ask you about the final files to build command any shop with heatstroke.
Don't you have an account yet? Become an MSX-friend and register an account!