Sinclair ZX80 / ZX81 / Z88 Forums

I just used the "slave tape" output on my 1980's prototype (pictured at the beginning of this thread) to copy an entire tape for a friend. The clone seems to load even more reliably than the original! Can't wait to see these kits distributed, once they pass muster.
Ian

(I know people say these oscilloscopes were bad, but now I know why.) They're not all bad , just not suited for everything. I have a DSO201, a 1 MHz "older brother" of yours that looks like a cell phone. I love it. I keep it in a box of "away mission tools", (just the bare essentials), and it serve...

My personal vote would go to the ZX-TEAM mod for 16 or 32K on the ZX81 motherboard. http://www.zx81.de/english/_frame_e.htm Everybody knows those wobbly, inept, high failure-rate 16K RAM packs are a royal pain. The "Hardware Projects" section on the ZX-TEAM site lists this mod first and foremost. It...

It's been a while. Is there any movement on this?

Congratulations Andy!

This is truly a milestone in Zeddy history, as I know many otherwise good examples have gone to the dumpster for lack of a replacement ULA.

Good going. I look forward to them being widely available.

eBay is full of ones like this from China. AVtoHDMI (600 x 600).jpg Some folks avoid the Chinese stuff like the plague, but for the price it's hard to go wrong. I use one with my Texas Instruments TI-99/4A, which is rather demanding--the "composite" video is taken from a cable that was meant to feed...

I never make mistakes. Once I thought I'd made a mistake, but it turned out I was wrong.

Seriously though, I'm glad to hear another dubber is on-line. Can't wait for Lardo to turn it loose on those "unrecoverable" tapes and see how many can be rescued.

mrtinb wrote: ↑Thu Feb 01, 2018 10:11 am A regular ZX81 16K RAMpack should work with Lambda 8300.

I concur. My Lambda, (insipidly named "Your Computer"), uses a Timex 1016 RAM pack I have left over after doing the 32K mod to my ZX81. It works just fine.

My brain hurts.

Mostly people mean the technical direction when talking about current flow which is more historical or conventional but not very precise. I wonder if it's a cultural thing which depends on which side of The Pond you're on. I was taught to think of current in terms of the flow of electrons, moving f...