19 Jun
2012
19 Jun
'12
11:23 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org] On Behalf Of Dennis Boone
Sent: 19 June 2012 23:09
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Weird Prices on E-Bay
Sadly I am a bit of a plotter nut. I have an HDS 681, HP7475A, Roland
DPX-3300, Roland DXY-880A. I would really like an analogue XY chart recorder
to connect to my home-built analogue computer and whilst they are common in
the USA shipping to the UK is prohibitive. And of course a Calcomp would be
heaven but they really belong in a Museum.
The DPX-3300 is real fun, I think its basically A1/B1 high speed but it
takes up a lot of room and Mrs Dave hates it :-( If you have Facebook there
are some videos of the Rolands here, playing Hangman driven by a VB.2008
program :-
http://www.facebook.com/#!/groups/118582384841803/
and there is one of the HDS plotting from CSMP II running on a modified
version of the SIMH IBM1130 emulator on youtube here:-
http://www.youtube.com/watch?v=SCUUgLvVvpg
In this case the 1130 software is completely un-modified, the emulator
converts from Calcomp steps to HPGL. Its pretty simple as the Calcomp can
only move 0.01" in one of eight directions which the emulator converts to an
equivalent "PA" HPGL command.
Any thoughts on what one of these is really
worth?
I know it is a high speed HPGL/2 capable plotter
and I
would really like > it but $2000....
As is, where is, I suppose, but $2000!?
I've seen several of these rotting in hallways around here
over the last few years, and a couple selling for at most a
few tens of dollars at the salvage yard.
There was an IBM model, 7372 I think, that was nearly
identical in appearance. I don't know if it's as fast, and
it may be six pen instead of 8. But if you can't find a 7550
for a sane price, it might be another thing to look for.
De
Dave Wade G4UGM
Illegitimi Non Carborundum