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Chris55000 · 18th Oct 2021, 3:47 pm

Hi!

As an update to this I've had an idea that might work, if a bit naughty – Heathkit provide "quasi–3D" line drawings of their rotary wafer–switch assembly drawings in their books, I could look for one that is most similar to the HK/2A attenuator switch assembly and trace over that to get the outlines of the wafers, tags and resistors!

When it's only one wafer with the resistors round the outside it's not too difficult to draw in 2D, but drawing an assembly like the HK/2A one where the resistors fit across two wafers on one assembly isn't anything like as easy!

Chris Williams

18th Oct 2021, 3:47 pm	#28
Chris55000 Nonode Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 2,867	Re: Converting a Photo to a Line Drawing? Hi! As an update to this I've had an idea that might work, if a bit naughty – Heathkit provide "quasi–3D" line drawings of their rotary wafer–switch assembly drawings in their books, I could look for one that is most similar to the HK/2A attenuator switch assembly and trace over that to get the outlines of the wafers, tags and resistors! When it's only one wafer with the resistors round the outside it's not too difficult to draw in 2D, but drawing an assembly like the HK/2A one where the resistors fit across two wafers on one assembly isn't anything like as easy! Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!