FWOW. I don't 'choose to use old hardware' I use what I consider to be the best solution I can get (and afford). That does not mean the latest, it doesn't necessarily mean the oldest. I do however refuse to use anything I can't fully understand and/or maintain. This does, alas, rule out much modern computer hardware... _VERY_ bad example. All the colour TV stardards were designed to be 'both ways compatible' That is, a colour TV had to be able to correctly display a B&W signal (this was the easy way, since the set could be designed to detect the lack of colour information (the 'colour killer' circuit) and respond accordingly). And also an unmodified B&W TV had to be able to produce a good (albeit B&W) picture from a colour signal. People with B&W TVs did not lose out when colour TV signals came along. THey could still watch them, and get pictures like they'd always got. Interestingly, I stoppd reading one magazine when they started prinitng in colour. The schematic diagrams printed over 'interesting' coloured backgrounds gave me a headache. I think others felt likewise, the magazine stoped being published not long afterwarrds... Of the magazines I read, the one that could most benefit from colour would be 'Clocks' (a magazine for people interested in real, mechanical timepieces). And amazingly it's the one with the fewest colour pages per issue... Yes!. You get the partsbook -- I get it off the bookshelf, you download it from bitsavers (I think) and print it. You then say something like 'Lever 12345 under the carriage is not moving forwards when...' And I say something like 'Check spring 45321 on the same diagram'. -tony