Search found 130 matches

by McKlaud
Thu Apr 12, 2018 8:51 am
Forum: Hardware
Topic: TZXduino
Replies: 2
Views: 277

Re: TZXduino

Hi Bill, TXZduino works with p. files out of the box, if the firmware is in version 1.3 or above. I know this as the fact, because I use it in that way. Maybe the f/w needs an update. See there: http://arduitape.blogspot.co.uk/2017/03/zx81-p-and-o-filetype-added-to-tzxduino.html?m=1 :geek: From whom...
by McKlaud
Mon Apr 09, 2018 9:02 am
Forum: Hardware
Topic: 28C64 in 2364 socket (28 pin to 26 pin)
Replies: 10
Views: 618

Re: 28C64 in 2364 socket (28 pin to 26 pin)

Burn before soldering. :)

The space inside the Zeddy's case is very limited. Unfortunately you will not be able to fit your adapter there and close the case.
by McKlaud
Sun Apr 08, 2018 11:44 pm
Forum: Hardware
Topic: 28C64 in 2364 socket (28 pin to 26 pin)
Replies: 10
Views: 618

Re: 28C64 in 2364 socket (28 pin to 26 pin)

Nice :)

I've done something similar for SMD EEPROM chips. See below:

Image

The project is public on OSHPark, there: https://oshpark.com/shared_projects/ArG7JDff
by McKlaud
Tue Apr 03, 2018 4:59 pm
Forum: Development
Topic: ZX Printer Belt
Replies: 102
Views: 8875

Re: ZX Printer Belt

Looks good! Unfortunately I live on "the wrong" side of the pond. :geek:
by McKlaud
Fri Mar 30, 2018 3:01 pm
Forum: Development
Topic: ZX81 ULA-in-a-CPLD
Replies: 198
Views: 20388

Re: ZX81 ULA-in-a-CPLD

Well :mrgreen: your scope has been out of calibration for 14+ years ;) So, results as expected :mrgreen: don't blame ULA :mrgreen:

Anyway I decided to use Schmitt-triggers and gave up with the noise. It is as it is.
by McKlaud
Thu Mar 29, 2018 5:21 pm
Forum: Development
Topic: ZX Printer Belt
Replies: 102
Views: 8875

Re: ZX Printer Belt

Please see the attached, I hope it would help.
by McKlaud
Wed Mar 28, 2018 10:56 pm
Forum: Development
Topic: ZX Printer Belt
Replies: 102
Views: 8875

Re: ZX Printer Belt

I am looking for a volunteer who can do three of such belts for me :mrgreen:
by McKlaud
Wed Mar 28, 2018 10:46 pm
Forum: Development
Topic: ZX Printer Belt
Replies: 102
Views: 8875

Re: ZX Printer Belt

@svid123: very impressive.
by McKlaud
Wed Mar 28, 2018 6:37 pm
Forum: Development
Topic: ZX81 ULA-in-a-CPLD
Replies: 198
Views: 20388

Re: ZX81 ULA-in-a-CPLD

BarryN wrote:
Wed Mar 28, 2018 6:27 pm
Is slow mode working yet?
In my ULA, still work in progress. Unfortunately I had to pack my toys and locked them up for a few weeks. :(

@Andy: Are spikes in your case similar to these in red circlers in the attached picture?