Okay, seller refunded purchase cost right away!? No word on returning broken item yet, will see.? But at most I'm disappointed to not get a working tube, but not out any money.? If they don't want it back, then I have a few parts to play with.? Would be very interesting to test shielding capacity of the housing.? Obviously it works very well for xrays at least!
On Sat, Aug 1, 2020 at 12:53 PM Nick Andrews via <nickjandrews=
[email protected]> wrote:
Yes the glass is very dark as you can see.? My guess is the spring goes between the end of the copper anode(?) and the brass contact patch in the HV end of the housing to conduct the hv.? That's how my powder XRD machine is set up.? Just odd that there's a tapped hole in the end. Notice the copper rod is bent.? ?I kept it out when I reassembled the housing,? for testing.?
Don't know if the ring around the Be window is stainless or what. Or how it's sealed to the copper, probably epoxy.? Very nicely made stainless housing.? Joints sealed with o rings.?
I may not get a response from seller until Monday.?
Yes the tungsten would be on the angled part, just at the beryllium window. The copper rod helps carry away the heat as most of the electrons are turned into heat.
What a mess and someone knew, hoping to pass it off as shipping damage?
I would suspect considerable lead glass in the envelope.
Geo
I think someone has been into it already,? unless the threaded hole in the copper central rod was simply from manufacturing.? The zip ties seen in auction listing pictures aren't on it,? just some packing tape.? ?
Not seeing the target,? unless the silvery spot on angled end of the rod is a piece of W.? Or is the silver ring around the window part of it?? ?The Be window might be salvageable.?
Most of the oil was gone from the cavity.? While there was blue paint on one screw at each joint,? that could easily be a dot of applied loctite or something.?
If you get to keep it with a full refund, maybe you can scrap it for the tungsten and other XRF-able elements inside?
Geo
----- Original Message -----
From: Nick Andrews <
nickjandrews@...>
To:
[email protected]Sent: Fri, 31 Jul 2020 18:59:59 -0400 (EDT)
Subject: Re: [XRF] Impulse offer accepted...
Well carp.? I finally got to the office and opened this up.? It's huge,? bigger than I expected.? ?Rattling noise sounds like a broken glass tube inside.? I imagine I should be able to open the housing and confirm.? Don't think it could be anything else.? ?Hope they don't hassle me about a return or refund.?
Guys I'm not familiar with that tube but I swear I saw a power supply for that 125- number recently. Maybe do a Google or even eBay search for that model # see what comes up. tick "include description".
The tag says tungsten target, that's good. So the tube has "a lot of potential" pun intended.
Geo
Not sure what it was originally used with.? But I have a few power supplies around here.? Several of the Glassman but they are -50kV as set up now.? Not sure how fine the control on those is but intend to do a test using precision pots to see how low the current can be managed.
I also have a Lixi PS-500 that has very fine control on the PS.? Not super high voltage either.
And I do happen to have a PGT HPGe unit!
On Fri, Jul 10, 2020 at 4:53 PM Dude <
dfemer@...> wrote:
What does the HV plug in to? They don¡¯t show the end of the
connector. What power supply does it use. Looks good enough to dose yourself
with. It would be be nice with a CdTe or HPGe detector for high end XRF.
Dud
?
?
Well, I should've thought more before making offers,
right?? Looks like a nice one though and up to 125kV, 10W tube.? Any
thoughts?
--
--
Nick A
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Nick Andrews