Sinclair ZX80 / ZX81 / Z88 Forums

Back of PCB looks like this Mark. One side is all ground. The connections on the other side (only 3 are needed in this case) go to A13, A14 and A15 on the ROM-el. The ROM has space for 8x 8kb ROM images: 0000h - Bugged ROM (7) 2000h - ZX81x2 (Big Bang) (6) 4000h - Husband Forth (5) 6000h - ASZMIC (4...

Hello Lardo (and Mark). They can be a bit fiddly can't they. That PCB type you have there actually originated from Mr Ingley and is the type he uses (or used) for the vLA81 external switch (when present). I actually had some made to provide with the ROM-el setup, but they are no larger.... I searche...

An even later contribution, but I've been playing with a few IF1's lately and have found that with 2 of them the ROM chips had failed. Very often it's the ULA that goes, but it seems the ROM chips can also die. Might be a coincidence but both were also the same type - TMS4764NL ZX84208 B8340L, made ...

Toolkit says its installed. Do I have to assign my file to vdrive one? I can't just drop it in there? The .ld 1 "filename" is what should assign the image to vdrive 1. Assming the file is on the root of the SD card and you haven't changed directories. Have you initialised the SD card? That will for...

If it doesn't accept .ld 1 "filename" then that could indicate that the toolkit is not loaded.

With no SD card in the vdrive, reboot the Spectrum and enter RUN (the keyword).

Or, is there perhaps an image already assigned to vdrive 1?

You should consult the vDrive ZX manual for that. You do have to install the toolkit first (and always, at least if you want to change what images are assigned to the virtual drives - but once you have all 8 setup with different images then you can load them without the loading the tk). You have to ...

Got this recently from it's original first owner. It was offered for sale with 3 microdrives, a complete Iss 6A Spectrum (in rubber key case), PSU, IF1 and a few other bits. There was no mention in the desc or title that it included an Issue One, and I don't think the seller had enabled visibility t...

The 'Games Cartridge' is certainly an official release, it came with the Interface 1 pack that Sinclair sold, which included 2 other carts with content, a blank one, an actual microdrive, cable, manual etc.

The actual Games designer BASIC file is corrupted and it never actually loads the m/c part.

Thanks Moggy :) As nobody else seems to be doing it, I'm considering supplying sets of the decals via sellmyretro in case other people want to finish off their ZX80 in the same way. decal-set.jpg Take my money! I had a bit of a retro-brighting mishap with the main ZX80 logo on my later moulded mode...

Yes, it's nice to have my main Speccy going again with perfect picture etc. I even oiled the tape mech, it's not perfect but loads and saves well. I like the grey +2 because: 1. They're cheap compared to the original 128k. 2. Microdrive compatibility (unlike all the later versions). 3. Cassette deck...