Posts by Richard Zealley
Tandy WP-3 Word Processor
The Tandy WP-3 is a portable Word Processor from the lates 1980s, early 1990s, a successor to the Tandy WP-2 but with a British English dictionary. Based on the Z-80 compatible NEC 70008A-6 it had a 6 line LCD display and a very usable full-size keyboard. Powered by 6V main supply and/or 4 x AA battries with backup from a CR2340 cell.
Read MorePsion Series 3mx SSD door microswitch repair
I recently bought a Psion Series 3mx on eBay but found it didn’t recognise SSDs inserted in either A or B slots and suspected a motherboard fault. Having found a cheap 3mx to test this, and checking that it did indeed read SSDs OK, after swapping the motherboard it didn’t help. Not only that but it also failed in the same back in the original machine.
Read MorePsion Series 3 – New Arrival
My existing Psion 3 was suffering from a faulty screen so I’d been on the lookout for a replacement/repair and found this on eBay, boxed with manuals, and it arrived today.
Read MoreSharp PC 3000
The PC-3000 was a DOS-based computer, the predecessor to the PC-3100, launched in 1991 following the release of the Atari Portfolio, the world’s first palmtop computer.
Read MoreTexas Instruments TI Programmable 57
The TI-57 was a programmable calculator made by Texas Instruments from 1977 to 1982, which was followed by the more powerful TI-58 and TI-59. It had 50 program steps and 8 memory registers. I owned a Texas Instruments TI-57 while at university, used very occasionally for ‘real’ problems but mainly just played with the examples…
Read MorePsion Series 5mx – Boxed and Working
I’ve had my Psion Series 5mx for a few years – another eBay purchase. I wanted one that was boxed with accessories, which this has, but it has suffered battery leakage at some point in the past so isn’t perfect.
Read MoreFirst Steps in Programming the Psion Series 3
This book covers the basic principles including graphics, Windows menus and Dialog boxes, and the extensive file and database handling capabilities.
Read MoreTexas Instruments TI-57
The TI-57 was a programmable calculator made by Texas Instruments from 1977 to 1982, which was followed by the more powerful TI-58 and TI-59.
Read MoreBBC Master 128 – Raspberry Pi Co-processor
I found about about the ability to add a co-processor to the BBC Master 128 when I came across this level shifter on eBay and decided it would be a great project and help make this my ‘go to’ BBC machine.
Read MoreA BBC Master 128 Bargain?
Having been looking out for a BBC Micro to add to my growing collection of retro computers from the 1980s and 1990s I came across a BBC Master being sold as spare/repairs on eBay. It was complete with monitor and dual disk drives but was for collection only from Somerset, 300 miles away. As it…
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