I stumbled upon a treasure trove of goodies for sale near Chicago. I paid $180 for about 600 lbs of scrap iron, drill bits (some brand new), endmills (some also brand new), reamers, an arbor press, a really old Anderson scraper, misc parts, a chunk of cast iron perfect for making a dovetail master () and lots of scrap iron (some of it is labelled O1 and W1 tool steel).
In the stash was an old 1-2" B&S mic and a Federal 0.0001 indicator. It's all gummy so I'm planning on taking it apart and cleaning it up (won't be the first DI I've been inside) but the crystal is so yellowed I can barely see anything.
Is it worth sending to Long Island Indicator for a new crystal? I think they want $22 to replace the crystal, which seemed pretty reasonably ... ?
I know the new Federal DIs are not very good. In fact, Long Island Indicator Service says they've yet to see a Federal DI that they like, but how about these old ones? Worth repairing or should it go in the junk bin?