Pictures !! I want to see the dipped tubes :-)
// Per Den 26/10/2011 kl. 10.14 skrev Nick <[email protected]>: > The reason I was asking about photographing VFDs is that I've recently > been playing with re-coating tubes whose original coating is in poor > condition or is not the wanted colour. > > John Smout, as always, was a fount of knowledge on these matters and > suggested FEV (French Enamel Varnish) - much used in the stage & > screen industries - essentially this is French Polish with a ready- > mixed in stain. The solvent for FEV (and French Polish) is methylated > spirits. > > I therefore ordered 250ml of Mauve from > http://www.goldleafsupplies.co.uk/acatalog/V_French_Enamel_Varnish.html. > > The subject tube was cleaned with methylated spirits and the tube held > upside-down in a suitable socket. I then dipped the tube into the FEV > up to the desired line, then withdrew it and hung it up to dry (about > 30 minutes). The coat was blemish-free and completely even with a > uniform colour depth. Granted, the tube I was testing this on had a > nipple which acts as a focus for drips draining off, but I see no > reason why this wouldn't work with smooth-topped tubes. > > After a few hours the coating is tough and stands a reasonable amount > of man-handling - the colour can be deepened by applying multiple > coats - the whole new coating can of course be removed with the FEV > solvent - methylated spirits again. > > FEV is available in a very wide range of colours - it is expensive, > but you don't need much. I had a whole bunch of rather rare VFDs with > damaged coatings - now they are like new. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
