The most useful thing for the VT500 cartridge is a RAM card, which expands the page memory.
They were hard to get once the terminals group was sold off. I managed to get some, but they appeared to be hand-assembled - poorly. But a few minutes of reflow, and I was happy... For the earlier terminals, the character ROM space was limited, so there was a plethora of models that had various (pre-unicode) multinational character sets and keyboard layouts. Many of these were done by local groups (e.g. outside the Maynard Terminals group.) The keyboards (LK201/LK401/LK421) were all identical hardware, but there was a surprising amount of work involved in getting the dozens of key labels/variations built/documented/manufactured. Someone mentioned the VT180. I happen to know that hardware quite well, as I repurposed the module for something else. It turns out that it was a second re-purposing. The board originated in the AD group - but that group got it from an engineer who designed it for his model railroad. The floppies were another story... On 10-Apr-17 18:33, Johnny Billquist wrote: > On 2017-04-11 00:27, Richard wrote: >> In article <f1af2a15-70dd-d3c5-cc76-285295092...@softjar.se>, >> Johnny Billquist <b...@softjar.se> writes: >> >>> You will also want a dump of the ROM cartridge, that actually holds >>> most >>> of the code... >> >> What do you mean by "ROM cartridge"? I've never seen any cartridges >> for DEC terminals, not even the GIGI. >> >> Are you referring to E80? > > No. The VT330 and VT340 have an external cartridhe that plugs into a > slot in the back, and which holds most of the code. The VT500 series > also have a cardridge slot, but for those I've never seen any > cartridge, so that must be some optional thing. > But for the VT330/340 the cartridge is not optional. > > Johnny >
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