Category : DEC

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Going through some boxes of documentation, I found some rather obscure DEC “Field Service Tech Tips” (and DEC uNote #043) that relate to the RQDX controllers. uNote #043 is already online elsewhere, but I had not seen these Tech Tips before. The 4 documents that I have scanned are: DEC uNote #043 (RQDX Controller Status/Information) ..

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The 871B Power Controller is a single-phase 240VAC power controller found in some PDP-11 systems. It has 6 switched power sockets. One of my holiday projects was to replace the faulty neon indicator in this Power Controller. I have just posted a short webpage with some information about this repair, and some reference information about ..

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I’ve just put up a webpage with some reference information about various RS232 connectors, including the DEC423 MMJ connectors. If interested, please take a look here -> http://avitech.com.au/?pa..

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I have some original VMS CDROMs. I was looking for a way to image these (for use with SIMH) and also a way to write ISO images back to blank CDs, to use on real hardware. This should be a fairly simple process using a modern Linux computer and the “dd” command, except for one ..

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I have a few VAX/VMS DECnet machines with node addresses in Area 4. Their full DECnet node addresses are 4.200, 4.202, etc.  When I connect a DECnet machine in Area 33 (full address 33.13) to the same Ethernet segment, each of the Area 4 machines can see each other over DECnet, but the 33.13 machine ..

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