You have reached the homepage for Grant Searle's bits and bobs. Please feel free to browse!

 I decided to build an arcade Pong machine using the original Atari schematics and a large number of chips in my spares box. I was pleased that it worked first time. If you want to see the results of my weeks work, please go to my Pong pictures here. Also included there is a build of a magazine-published version of Pong. This differs from the arcade version because it is an analogue design, popular with the very first home consoles, instead of the digital version used in the arcade Pong.

 

I won an old Arcade Super Breakout board from eBay. It was a major restoration, but here is how I did it.


I have also built a few of the home micros using the schematics. To see the results, please visit the following pages:

ZX80 page

Jupiter Ace page

MicroUK101 page

Over the years I've been collecting the micros which were popular in the 80's. Here is a selection of what I've got:
My machine collection

Anyone interested in the MK14 computer may want a copy of the original SCMP datasheets which I've scanned:
SCMP datsheet scans

Spectrum clone
I've been following, with great interest, Chris Smith's "Harelquin" Spectrum Clone here: http://www.nfluid.com/specDesign/thebeginning.shtml
I was so impressed that I HAD to have a go myself. I am very pleased that I managed to get the design working.
You can see my version (some differences to Chris's design to simplify the Sync circuitry) here.
(not much there, yet, but please look at Chris's log pages for some excellently detailed information)

Click here to see my home-designed CP/M machine built on breadboard. I designed the circuit and wrote the BIOS and much of the monitor myself.


The Ladybird Radio.

Many (!) years ago I built a great medium wave radio from a Ladybird book. I still have it, and here are photos of it,


My contact address is currently:
    
I will always try to get back to you, but I don't always get the time, so please be patient. No requests for buying anything off me though, please.

Please note... if I start getting spam on this address then I will drop this address and use a new one.
(If you have contacted me and have not had a reply, check back on this page to see if it has changed)