Front Panels - PDP8 and PDP 11

""The cameras (they were huge) and the darkend rooms they worked in no longer exist."" These cameras you speak of were wonderful.... I rode a Robetson for part of a summer making halftones and line shots for a print shop in AZ here. In my off time I was allowed to shoot all the old docs and old Eastman Kodak camera catalogs I wanted to and print them up as posters! The lens was a Goerz Red Dot Artar and the sharpest flat field lens I had ever used!! Back to computer panels.... Rod thanks for doing the work to create these! ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 3/2/2016 3:32:48 P.M. US Mountain Standard Time, rodsmallwood52 at btinternet.com writes: Hi Guys Having got 8/e (A & B) plus 8/f and 8/m into production its time I made a few comments. The aim has always been to reproduce the original panels using the process DEC used all those years ago. Needless to say we had to go through the learning curve with only photographs, scans and one 8/m original panel to go on. In the interests of origiality I have kept what we used call 'features' as found in the documentation and the sample we had. I'm trying to reproduce the original, not produce an improved or fixed version. The only process deviations I have allowed myself are as follows: 1. The original versions would have been drawn twice full size by hand on matt paper in indian ink. One sheet per colo(u)r would have been requred. They would then have used a process camera to reduce to one to one positive masters on clear acetate film. The cameras (they were huge) and the darkend rooms they worked in no longer exist. I used to do just that in the early '70's but whats weird is where I worked is less than 50 yards Now I use Inkscape and its layers to do the same thing. The screeners have an Epson printer the size of a piano to print my layers in black onto clear film. After that the process is the same as it was. They take a fine meshed cloth streched onto a frame. Its coated (by hand) with a photo sensitive emulsion, when dry it gets exposed through the master using a UV light source. The the parts proteced by black on the master are water soluable and get washed out and hence let the ink through. So one screen per layer is required 2. DEC would have printed the images first and routed or milled the holes using some kind jig later. As long as the hole stayed inside the white line that was deemed to be OK. We drill (laser cut) first and screen afterwards. Regards Rod