[Coco] 2764 EPROM vs 2864 EEPROM

[Gene Heskett]

On Sunday 29 September 2013 10:34:33 Steven Hirsch did opine:

> On Sun, 29 Sep 2013, Gene Heskett wrote:
> > Now that worked, but the file links are all #403.  I will order the
> > big Willem kit if and when a good CC arrives
> 
> If you are thinking of buying from Sivava, be aware that you will have
> none, nada, zero, zilch tech support.  He is happy to take your money,
> but does not respond to e-mail after the unit is in your hands.

Thanks for the heads up Steve.  I take it that the SW I just downloaded for 
linux will likely not work with it either.

I take it then that this is an example of some jerk buying out a good 
product, and then modding it just enough to make a captive customer, and 
then not supporting that customer.

One of the worlds surplus rectums IOW.

> 
> Also, if mine is any example, it has been subtely modified from the
> public Willem standard and is dependent on Sivava's modified software
> (for which no source is available).
> 
> Finally, the charge-pump scheme used to develop the 21V rail for
> programming older NMOS parts is generally not able to source enough
> current for reliable programming.  There's plenty of discussion on this
> on the Willem forums (not sure they are still online).  I ended up
> buying a retro-fit kit from one of the folks there since I blow a fair
> number 2708, 2716, 2732 etc.
> 
> As always, Caveat Emptor!
> 
> Steve


Cheers, Gene
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