06-22-2011, 02:49 PM
torikoos Wrote:Well, the description wasn't too bad Jonte, there where a few occasions where I didn't quite get 'it', but the photo's clarified 'it'. :-)
As for me and my wizardry: I am educated in electrical and electronic engineering, and can handle to occasional circuitboard with a soldering iron, but my job and other interests mean that I don't get to do that too often, and it's not a hobby, so I'm certainly not that experienced. Besides, developments in electronics go so fast, that if you don't keep on top of it, you'll 'miss out' very soon.
As said, at the time (I was 16 or 17 or so), I used a design that came with a materials list, and a print of the circuit board layout. So all I did was to copy this onto transparent paper and developed and etched the pcb myself, using the etching facilities at school etc. Then I soldered the thing together with the instructions in the magazine, and calibrated it etc. I've run several N and HO scale trains with that controller.
This reminds me, as soon as I have a chance, I will see if I can dig it out , I've got a few loco's remaining that I have not yet converted to DCC, so I can have a look if it all still works :-)
Koos
PS: I've just found the diagram , parts list etc on this site , but here it's shown using 'experimentation board', or 'VERO board'.
It was older than I thought, first published in October 1984.... and it is a pulse width modulation controller.
You'll have to translate the page (there's not that much written) using google translate or something :-)
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Thanks, Koos; I'll take a look.
Jonte.