Trying googling for "brass deep drawn cup". I'm sure you'll find what=20 you need, but these may be manufacturers, so you'd need to contact them=20 to see if they have anything leads as to who uses them. Cheers, -Neil. On 10/26/2015 1:32 PM, David VanHorn wrote: > Thanks for the lead. I'm not finding anything though. Plumbing's not > really my thing. > > > On Mon, Oct 26, 2015 at 11:11 AM, William Wilson wrote= : > >> I believe the part you are looking for is a "7/16" C Tube Cap". >> Or as it is more commonly called a 7/16 end cap in pneumatic, hydraulic, >> and plumbing operations. >> They are a stock parts and come in a variety of lengths and even tapers. >> Usually made from brass (air), bronze(water), steel(hydraulic), or even >> chrome plated. >> If there is someone in your area that does pneumatic work, they will >> probably have one in their truck; otherwise, try brassworks.com. >> >> -----Original Message----- >> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf >> Of David VanHorn >> Sent: Sunday, October 25, 2015 9:14 PM >> To: Microcontroller discussion list - Public. >> Subject: [EE] An odd fitting I need to find. >> >> I need some help sourcing the metal fitting in the picture: >> http://ecx.images-amazon.com/images/I/310e-2lm8RL._SY355_.jpg >> >> It's 7/16 OD, thin wall brass. It matches K+S stock tubing except that >> the end is rounded off and closed. >> http://www.hobbylinc.com/htm/k+s/k+s8137.htm >> >> The diameter is critical, the fitting it goes in doesn't flex much. >> >> I am not too picky on length, more than half is good, more than an inch = is >> a problem. >> >> A hole in the closed end is actually good, but not critical. >> >> Someone somewhere makes these things, it's probably some common thingus >> used on something I've never heard of. Can anyone here match it up wit= h >> something? >> >> Jewlery fittings are close, but all I've seen are too small in diameter >> and only about 1/4" long. >> >> >> >> Why: >> >> I have an antique "Violet Ray" device that I would like to make some end= s >> for. It's a rare one, which runs from 32V "farm current". Such devices >> were made by the truckload around the turn of the century, to cure whate= ver >> ailed you, but the vast majority are 110 or 220V for europe. The farm >> current device is unique. >> >> I could just go buy something like in the pic, but I want to make >> something more like a geissler tube, which is a bit of a project. To th= at >> end, I've taken up glassblowing, found a source of uranium glass, built = a >> vacuum manifold and "filling station" and learned to seal off these tube= s >> when under vacuum of 1-10 torr. >> >> On Ebay, there is a set of Christmas lights that are for 32V farm curren= t, >> starting bid is $750 for eight lamps in a string. >> >> http://www.ebay.com/itm/Vintage-Christmas-Lights-Delco-Farm-32-Volt-Noma= -4-Volt-Mazdas-Extremely-Rare-/171975314757?hash=3Ditem280a870d45:g:~rcAAOS= w5VFWHB7f >> >> Apparently the decision for 32V went along the lines that farmers >> generally suck at being electricians, so 32V isn't too bad on I^2R losse= s, >> but low enough for few fried farmers. Standard 110V plugs and switches >> were used though, which could get exciting if you took your farm device = and >> plugged it in on a trip to the big city. >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .