[kiwi_steve]

Nice job derusting, what did you use?

Just some cheap rust killer - Phosphoric acid based - I've been very pleased with how its worked.  Everything I've used it on has come out really nice but I've been very careful to fully wash down everything and keep an eye on how long it soaks for.  The chassis I left outside and brushed liberal coats on (I had nothing big enough to soak it in, and nowhere near enough anyway) keeping it wet for about 3-4 hours... it worked really well.  You can't (to the best of my knowledge) get Naval Jelly here.  As you can see it did a nice job on the dial lamp holder, which was very rusty and tarnished to begin with.

[Image: http://i241.photobucket.com/albums/ff222...qb38rm.jpg]

As for caps, other than usually not taking apart padders/trimmers part, they come apart very easily and are assembled back as easily.

This made me chuckle - the darn thing soaked up about 2 hours of my time in reassembly.  As you can see from the photos below, without removing the rivet holding the grounding tabs in place (and I couldn't remove it as I had nothing small enough to replace them without rubbing on the vanes) I had to bed them well beyond what I thought they would take... but they took it.  I think next time I'll see about buying some evaporust or getting a sonic cleaner.  The main time putting it back together was getting all the vanes neatly aligned which took ages, and then having to do it again because I realised when it was done that I hadn't tightened the ball bearing cap at the back that seats the main shaft - which pushed all the vanes together so I had to start again!   Once derusted I clear coated it to hopefully stop it re-rusting.
[Image: http://i241.photobucket.com/albums/ff222...xjxqwd.jpg]

[Image: http://i241.photobucket.com/albums/ff222...nyq44m.jpg]

Yours is the one with ballsy uning gear ,  a cool thing and easy to clean and does not break, unlike those otger ones (although does not afford as fine a tuning as some others due to small mechanical advantage but so frikkin' what...)

I didn't realise they came with a geared tuning gang... although I seem to recall the later runs did change part number... but simple is often best, so given the grief this one has caused I doubt I want to put anything else in it

Cheers

Steve