Recent content by robjordan

Taken.

I bought this modem at Fry's in Sunnyvale when I was temporarily working in California in 1992. It was kind-of partnered with HP Palmtops, but no reason it couldn't be used with other computers. It has been sitting in a cupboard unused for 30 years so no guarantees. It lacks a power supply. but...

You're right, it's Quality Software's Martian Invaders. Page 3 of the manual clearly matches. Incredible knowledge to spot that!

Haha, we just turned up this photo. Christmas Morning 1980 I think, me in pyjamas ready to play my new Galaxians game. Strangely, reading the manual first!! Same Sorcerer that's on my bench now.

I wrote a little blog post based on my experiences burning a replacement 2716 EPROM for the BASIC ROM Pac in my Exidy Sorcerer. Hoping to dispel a bit of the mystery that I felt when getting started in this for the first time. The TL;DR version: Low-cost Chinese programmer and eraser worked...

Thanks Chuck. Naive question. Some of the regulator output pins are quite hard to access. Can I just clip leads from a separate PSU onto any convenient exposed bits of the +5/-5V/12V rails? Will the potentially failed capacitors have any influence on the power delivery in that scenario? Yes...

Hi exidyboy, Yes, I feel so too. Just need to keep my hands away from hot components while I work on it with the lid off! One minor burn already and, separately, a 240v zap from the terminals of the power supply filter, which are rather exposed. Or were, I've taped a big piece of rubber over the...

Hi all I'm working on my old Exidy Sorcerer. It's unmodified since my dad came home with it in 1979. It works, but I'm noticing there seems to be a lot of high frequency noise on the power supply, and also on the tape MIC and AUX outputs, which I'm guessing is a consequence of the power supply...

My dad brought home an Exidy Sorceror in 1978 or 79, when I was 15 years old. I learned to program on that machine, later moving to BBC Micro. It was my number one hobby, but I never had a thought of making it a career until I was almost through university. Finally it dawned on me I could make a...