| before kermit and minicom there was the dumb terminal | I bought one for myself in 1983 | chip level repairs on this landmark machine |
| chip level repairs on this landmark machine | 1979 add for the VAX 11-780 | 1979 add for the VAX 11-780 and it cost more than the earth ! |
| my favourite computer, as used in the Xenotron XVC2 | ||
| its a real pity that the Z8000 never had the commercial success of the X86 | it should have been in the original IBM PC...yes it WAS better | very expensive glossy add for the PDP11 |
| very expensive glossy add for the PDP11 | very expensive glossy add for the PDP11 | very expensive glossy add for the PDP11 |
| very expensive glossy add for the PDP11 | every EE has used these capacitors and the very beginning of Compaq | every PC power supply has these, though SPRAGUE made the best |
| I saved up my pocket money so that my Z80 could have just ONE of these miracle rams | see my article on the XVC2, interesting comparison product | Every Penguinista should have this in poster format |
| bought one of these for my first Z80 | poor mans
9 track drive. makes your micro or mini into a pretend mainframe. used to repair these. They were a very good product. |
one of the responses to DECs punitive pricing for Q Bus products |
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sequence from 1977 the PDP11 |
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sequence from 1977 the PDP11 |
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sequence from 1977 the PDP11 |
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sequence from 1977 the PDP11 |
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sequence from 1977 the PDP11 |
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sequence from 1977 the PDP11 |
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sequence from 1977 the PDP11 |
see also, my article on the XVC2, interesting comparison product | the xenotron pagemaster used these monitors which i had to fix |
| there really was only one terminal, and this was it |
the VT100 still lives with us as the "ANSI" terminal | the Pyramid 90X unix supermini that I used to maintain had one |
| cuteness award | there once was a time when a 2400 baud modem was allmost "broadband" ! Found many of these embedded inside "modems" |
Where would we be without the ubiquitous trimpot ? too much of the equipment I used to maintain had way too many pots. Autokon 8400..I am still angry... |
| seagate has gone on to brilliant things but here is where they started |
be that as it may, the ST225 was the "definitive" hard drive | 1983. the TEAC floppy was the very first truly reliable drive I used |
| tandon was the great wannabe, now gone | I had to perform head alignment on these | |
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| look how they were made. This image may account for their fragility | bought this 8inch floppy in 1984 for $500 I am still kicking myself |
nice try, farewell tandon |
| add from 1983, as used at work | 1978 brings the gell cell, a very dependable battery, and this company is still around! | |
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| I could not see the point of wire wrap in 1977 given the extra-ordinary cost of sockets and wire but now I have seen the light |
the naked mini was imbedded in many CAD/CAM systems including the Monotype Lasercomp which I used to repair. these were very reliable |
this crowd made the backplane for various Burroughs minicomputers , I am thinking of the B350 disk pack drive controller |
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| other adds for the LSI-11 | other adds for the LSI-11 | I have kept some of the Gates X Cells in use for over 25 years |
| these trimmers can still be purchased. all my ham equipment contains them | I purchased a CPM-80 license in 1983 for A$200, a huge amount of money back then but it was actually worth it |
This drive was used on the Xenotron XDS product |
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| sex sells, and it sold wire wrap cards in the seventies. These boards were used extensively in Burroughs products and I still use them for homebrewing |
got one! | remember when ZILOG owned the home computer mind space I really liked these chips, simple to use and easy to program where are they now ? |
| It began here |
Microsoft add from 1982 oh, the horror! |
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| Nooooooooooooo !!! | ||
| why calculate the resistor ? Just use a trimpot! | These very simple an reliable linear PSUs appeared in nearly everything | Xenotron started to use these early Rodime drives when 26M cost nearly A$8000. We paid people to fly to England and personally deliver them. |
| electro-mechanical synchro-resolvers was how "data" was relayed on battleships | We used a lot of the SMD disk drive interfaces, even signed an NDA for the user manual! | DEC seemed to really like Berg |
| Apollo Domain was one of the first that thought that networking their workstations was a very good idea. They were right. | I remember people queing up to buy 64Kx1 ram chips for their Z80 | |
| whatever happened to TRW ? they made some very impressive components | ||
| remember when an 10Mhz 2901 bipolar slice was "mind bogglingly fast" | many of these appeared in SMD storage controllers and as ALUs in many mainframes and super-minis | |