Search found 975 matches

by Paul
Fri May 18, 2018 6:16 am
Forum: Development
Topic: ZX81 ULA-in-a-CPLD
Replies: 233
Views: 28627

Re: ZX81 ULA-in-a-CPLD

If you haven't ordered loads of pcbs already you could go for a smaller jumper like 2mm instead of 2.54mm. Or even 1.27mm jumpers are available.
Or just leave it empty so anybody could solder it if required. Like with the m1not where you have no jumper.
Kind regards Paul
by Paul
Mon May 14, 2018 6:37 am
Forum: Hardware
Topic: 28C64 in 2364 socket (28 pin to 26 pin)
Replies: 10
Views: 969

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

You could put the EEproms on the bottom side.
;)
by Paul
Sun May 06, 2018 9:19 am
Forum: Development
Topic: ZX Printer Belt
Replies: 119
Views: 13853

Re: ZX Printer Belt

I can't see much difference. 8-)
Great job. Love to see how they print. Kind regards Paul
by Paul
Mon Apr 30, 2018 4:19 pm
Forum: Hardware
Topic: ZX80 3K Ram Pack memory
Replies: 45
Views: 3875

Re: ZX80 3K Ram Pack memory

The ZX80 3K memory pack reproduction has just been posted on the SMR site. Thanks to everyone here for your generous help and advice! :D Hi Mike, I had to search a while. Would you be so kind to also list it in the ZX80 section? And it extends the internal ram by up to 3 k giving a total of 2 to 4 ...
by Paul
Sun Apr 29, 2018 6:50 am
Forum: Development
Topic: ZX Printer Belt
Replies: 119
Views: 13853

Re: ZX Printer Belt

gammaray wrote:
Sun Apr 29, 2018 5:28 am
Tears of joy. :cry:
I second this!
YEAH!
by Paul
Wed Apr 25, 2018 9:55 pm
Forum: SALES
Topic: Sinclair ZX80 Computer / collectable item with 16k RAM adaptor On Ebay
Replies: 6
Views: 967

Re: Sinclair ZX80 Computer / collectable item with 16k RAM adaptor On Ebay

Yes indeed! I need to type quicker I suppose :oops:
by Paul
Wed Apr 25, 2018 8:20 pm
Forum: SALES
Topic: Sinclair ZX80 Computer / collectable item with 16k RAM adaptor On Ebay
Replies: 6
Views: 967

Re: Sinclair ZX80 Computer / collectable item with 16k RAM adaptor On Ebay

mhudson52 wrote:
Wed Apr 25, 2018 3:18 pm
Was that RAM pack actually available at the time of the ZX80?
There was a technical equal 16K RAM with white letters on the black case that was explicitly for the ZX80.
by Paul
Mon Apr 23, 2018 9:35 am
Forum: Hardware
Topic: Streaky video
Replies: 6
Views: 646

Re: Streaky video

Welcome Chalkie666,
I would also go for a composite video mod.
VIDEOAUSGANG FUER DEN ZEDDY (1).pdf
(448.9 KiB) Downloaded 48 times
I am afraid its only in german. Bit maybe still helpful.
by Paul
Thu Apr 19, 2018 4:41 pm
Forum: Development
Topic: ZX Printer Belt
Replies: 119
Views: 13853

Re: ZX Printer Belt

My excuses for sending the wrong measurements.
I remembered that height and base were approximately the same number and the top part was half but I got the numbers wrong :oops:
Kind regards Paul
by Paul
Sun Apr 15, 2018 6:01 pm
Forum: Welcome Area
Topic: Hello from Canada
Replies: 17
Views: 2334

Re: Hello from Canada

The quality of the edge Connector in the 80s was very low.
Please send me the broken 48k for repair and I send you a high quality new edge Connector.
Kind regards Paul