[Arran]

Don't trash it or part it out, very few of those sets can't be fixed. The S40s are good performers and decent looking for a communications set, I have the S77 which is the AC/DC version of an S40, it's a hot set with very pretty green dials. There is an outfit that manufactures plastic parts that produces knobs very close to the stock Hallicrafters sets, I can't recall the name but I would like to contact them about it. My radio does not have any black beauties or bumble bees, they are all wax jobs, they may have been put in there as replacements. Six volt tubes and power transformers aren't worth a whole lot, you can buy those at ham fests by the pound, much better to sell the set as is or learn to like it, it was a gift after all.
Best Regards
Arran