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#41
Quote from: Chris Savage on Jan 12, 2026, 10:52 PM
Quote from: JKnightandKARR on Jan 12, 2026, 09:58 PMOne i know of was ZX81 +38 or something like that

I was going to order this one, but as you can see, shipping to the U.S. starts at $50.00!!!
https://github.com/mahjongg2
I found this, idk if this looks interesting to you or not, beats $250... lol

Edit: Here's what looks like original PCB of the ZX-81
https://github.com/Bluescreen2001/ZX81-PCB/tree/main/ZX81_keyboard
#42
Quote from: Chris Savage on Jan 12, 2026, 10:52 PM
Quote from: JKnightandKARR on Jan 12, 2026, 09:58 PMOne i know of was ZX81 +38 or something like that

I was going to order this one, but as you can see, shipping to the U.S. starts at $50.00!!!
Order that with the sockets for the chips! Only an additional $50.... lol kinda $$$$$$ can buy an original for 1/4 cost
#43
Microcontrollers & Processors / Re: Assembly?
Last post by Chris Savage - Jan 12, 2026, 10:53 PM
Quote from: JKnightandKARR on Jan 12, 2026, 10:12 PMIf one could get ahold of the ROM n somehow transfer it into a supported file type, probly would work

I might have to visit some of the forums and see if anyone has the physical cartridge or the ROM files.
#44
Quote from: JKnightandKARR on Jan 12, 2026, 09:58 PMOne i know of was ZX81 +38 or something like that

I was going to order this one, but as you can see, shipping to the U.S. starts at $50.00!!!
#45
Microcontrollers & Processors / Re: Assembly?
Last post by JKnightandKARR - Jan 12, 2026, 10:12 PM
Quote from: Chris Savage on Jan 12, 2026, 04:48 PM
Quote from: granz on Jan 12, 2026, 03:59 PMThere is also a Spectrum emulator for the PicoCalc. I have not downloaded it yet, mainly because not being very interested in arcade-type games, I tended to be more interested in the ZX-80/81, but haven't seen any PicoCalc emulators for that. It seems that most emulator writers are more interested in games.

Funny you should mention that. I was talking to JKnightandKARR recently and mentioned that RetroPie supports the Sinclair, but is really built around the ROM cartridges (typically games) that plug into it. But many such computers had assembler cartridges and if such a ROM could be found, that would even work. But since most people using RetroPie are into games, I'm not sure there are any utility ROMs floating around out there, especially for the Sinclair.
If one could get ahold of the ROM n somehow transfer it into a supported file type, probly would work
#46
Quote from: Chris Savage on Jan 12, 2026, 08:00 PM
Quote from: JKnightandKARR on Jan 12, 2026, 06:51 PMi've been doing research n you can get parts to make all new systems.

If you're talking about the Minstrel Issue 3 Sinclair ZX81-Compatible Microcomputer Kit, I've posted about these before, but didn't think it was an exact replacement, but rather a clone using some updated parts.



I was going to order one of these last year, but the the tariff thing ruined that.
One i know of was ZX81 +38 or something like that
#47
Quote from: JKnightandKARR on Jan 12, 2026, 06:51 PMi've been doing research n you can get parts to make all new systems.

If you're talking about the Minstrel Issue 3 Sinclair ZX81-Compatible Microcomputer Kit, I've posted about these before, but didn't think it was an exact replacement, but rather a clone using some updated parts.



I was going to order one of these last year, but the the tariff thing ruined that.
#48
Quote from: Chris Savage on Jan 12, 2026, 04:44 PM
Quote from: granz on Jan 12, 2026, 03:55 PMAlso, related to this: Brian (AKA @MicroNut) has (had?) a ZX-81 remake.

Define: remake?
i've been doing research n you can get parts to make all new systems.
#49
Microcontrollers & Processors / Re: Assembly?
Last post by Chris Savage - Jan 12, 2026, 04:48 PM
Quote from: granz on Jan 12, 2026, 03:59 PMThere is also a Spectrum emulator for the PicoCalc. I have not downloaded it yet, mainly because not being very interested in arcade-type games, I tended to be more interested in the ZX-80/81, but haven't seen any PicoCalc emulators for that. It seems that most emulator writers are more interested in games.

Funny you should mention that. I was talking to JKnightandKARR recently and mentioned that RetroPie supports the Sinclair, but is really built around the ROM cartridges (typically games) that plug into it. But many such computers had assembler cartridges and if such a ROM could be found, that would even work. But since most people using RetroPie are into games, I'm not sure there are any utility ROMs floating around out there, especially for the Sinclair.
#50
Quote from: granz on Jan 12, 2026, 03:55 PMAlso, related to this: Brian (AKA @MicroNut) has (had?) a ZX-81 remake.

Define: remake?