P C Arnold Technical Services is the name I traded under for a number of years, while I was a self-employed electronics design engineer. I designed electronic devices for people, laid out the PCBs, manufactured prototypes, and on occasion manufactured quantities of whatever the thing was for the end customer.
Over a period of about 6 years, I designed about 40 different products, mainly for the Acorn computer range, of which rather more than half ended up as commercially viable products. Among the designs were: SCSI cards of various sorts, graphics cards, serial comms devices, DSP based designs, Ethernet cards, processor upgrades, and a few more esoteric odds and ends. At one point I was rather amused to note that all 8 expansion slots of my personal machine had cards in that I had designed.
I have also designed a couple of electronic medical instruments, a burglar alarm system, a series of upgrades for a commercial laser-tag game, and all the control circuits for a real time full motion hydraulic simulator system.
I have been in full-time employment for the past couple of years, but was recently made redundant. For details of my activities over this period , assuming you even care, look here. As a result, I have restarted PCATS, and currently have two main projects going. One is the hardware for an in-car Mpeg3 player, and the other is for a portable computer based on the ARM7500FE processor, running Acorn Risc-OS.
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