Search found 81 matches

by jdfan1000
Sat Jan 06, 2024 4:53 pm
Forum: ZX Spectrum Lounge
Topic: BASIC source code, maybe
Replies: 2
Views: 978

BASIC source code, maybe

Hi all, I have been working for a number of years documenting the American side of the Sinclair world (see timexsinclair.com). I also host twice-a-month Zoom meetings for folks interested in the Timex versions. Last year, Lon Hildreth, one of the software engineers who worked on the TS 2068, joined ...
by jdfan1000
Sat Sep 30, 2023 3:10 am
Forum: Sinclair Misc
Topic: Can Anyone Answer These Questions - MW100 Printer
Replies: 5
Views: 6091

Re: Can Anyone Answer These Questions - MW100 Printer

Hey, American here who actually saw an MW100 in a university store in the early 80s. I had a TS1000 and any printer was out of reach, so I spent a lot of time looking at stuff in stores. The MW100 is a receipt printer modified to work with the Sinclair. It prints 16 chars across, so you have to tape...
by jdfan1000
Wed Sep 20, 2023 4:51 am
Forum: Sinclair Misc
Topic: Archive site of Sinclair related books and magazines (PDF)
Replies: 3
Views: 4940

Re: Archive site of Sinclair related books and magazines (PDF)

That’s me :)

My website (timexsinclair.com) indexes all that stuff, too.

David
by jdfan1000
Fri Nov 11, 2022 2:50 am
Forum: Hardware
Topic: AZMIC ROM
Replies: 36
Views: 20262

Re: AZMIC ROM

I came into a bunch of moderately-rare-in-the-US hardware by way of one of the authors of The Timex/Sinclair User's Encyclopedia . Today I scanned the manual for the American version of the ASZMIC ROM. What does not come through in the scan is the gold color of the cover. Everything else is there, t...
by jdfan1000
Tue Nov 08, 2022 2:36 am
Forum: Sinclair Misc
Topic: ZXForth. Plagerism,clever marketing or something else?
Replies: 20
Views: 24652

Re: ZXForth. Plagerism,clever marketing or something else?

I have a PDF that's a retyped version of the H4TH manual and did a quick comparison... the differences do seem a bit cosmetic :)

David
by jdfan1000
Sun Nov 06, 2022 9:23 pm
Forum: Sinclair Misc
Topic: ZXForth. Plagerism,clever marketing or something else?
Replies: 20
Views: 24652

Re: ZXForth. Plagerism,clever marketing or something else?

Reviving this thread to mention that I have come into possession of two copies of the Tree-Forth manual. I've unbound one (just 3 giant staples), scanned it and uploaded here:
https://archive.org/details/tree-forth

Best,
David
by jdfan1000
Thu Sep 22, 2022 12:41 pm
Forum: WANTED
Topic: Zx81/ts1000
Replies: 12
Views: 10389

Re: Zx81/ts1000

Stewart Newfeld sells a composite mod on eBay, too, here:
https://www.ebay.com/itm/175399982542

He’s in Brooklyn.

You might want to also check out my website (timexsinclair.com) and look at the Community page under About for resources on our side of the pond.

Best,
David
by jdfan1000
Mon Sep 12, 2022 3:09 am
Forum: Sinclair Misc
Topic: Exploring the Timex/Sinclair 1000’s Sinclair Logic Chip (SCL)
Replies: 22
Views: 6645

Re: Exploring the ULA - Scan Line Timing diagram

I’m not sure what equipment Wes had access to… he’s done some hardware work related to the 1000 and 2068. Most of his published stuff is about the bank switching in the 2068 and interrupts.
by jdfan1000
Sun Sep 04, 2022 6:36 pm
Forum: Software
Topic: SHREB Programs
Replies: 19
Views: 13801

Re: SHREB Quickies

That’s so cool, Greg!

Would you be interested in talking with some TS enthusiasts on Zoom sometime?

David
by jdfan1000
Sun Sep 04, 2022 3:08 am
Forum: Sinclair Misc
Topic: Exploring the Timex/Sinclair 1000’s Sinclair Logic Chip (SCL)
Replies: 22
Views: 6645

Re: Exploring the Timex/Sinclair 1000’s Sinclair Logic Chip (SCL)

Yes, I think for a while. Wes was an engineer at IBM. The group was located in the area that included IBM's headquarters.

He also wrote some great articles about interrupts and about the bank switching in the 2068.

David