Mcnew32(Ag)
Well-known member
- Joined
- Sep 3, 2014
- Messages
- 125
Those look like old telecom switch gear relays - the contact points in telecom switch gear relays can be made of several metals --- the point can be made of silver - or palladium - or an alloy of silver/palladium - sometimes they will be gold plated (just the point - not the buss bar) - generally these points are round pointsHello,
Guys I need to ask you something. Does such Philips relays contain gold ?
Thanks in advance.
Regards.
Wyglądają jak stare przekaźniki rozdzielnic telekomunikacyjnych - styki w przekaźnikach rozdzielnic telekomunikacyjnych mogą być wykonane z kilku metali --- końcówka może być wykonana ze srebra - lub palladu - lub stopu srebra/palladu - czasami będą złote platerowane (tylko punkt - nie szyna autobusowa) - generalnie te punkty są punktami okrągłymi
Czyli - jeśli same punkty nie są złocone (powleczone) to w przekaźnikach nie ma złota (gdzie indziej).
Lub mogą to być bardzo cienkie punkty palladowe (przymocowane do szyny zbiorczej) z bardzo cienką złotą nasadką (ale grubszą niż złocenie) na wierzchu palladu - ogólnie te punkty są kwadratowe zamiast okrągłych
Punkty na twoich przekaźnikach wyglądają na okrągłe i nie pozłacane - więc - prawdopodobnie są to srebro - lub pallad - lub połączenie srebra i palladu (niektóre z nich są srebrne, a niektóre z nich pallad) lub stop srebra/ paladium
Oto wątek, w którym napisałem o przekaźniku tego typu, w którym niektóre punkty w przekaźnikach są srebrne, a niektóre z palladu - wraz z instrukcjami, jak je przetwarzać
https://goldrefiningforum.com/threads/three-types-of-contacts.23091/
Kurt
Hi, I can't see the pictures from this post. We just removed a room-full of retired telephone switch gear. I'm trying to confirm if it's the same and the best place for it to go so that it doesn't just get thrown into the steel pile!I have an opportunity to acquire some old old telephone switch gear. At least I think it's old old telephone switch gear. There may be up to two tons of this stuff available, and I think I can buy it for about 20 cents per pound. The dark colored strips are copper, with spots of gold plating. The silver colored strips are magnetic, either 400 series stainless, or nickle.
Is any one familiar with this stuff? The last picture shows some contacts, would you expect Palladium?
Any guess as to how much this stuff might be worth?
(I hope I'm not burning up too much band width with my pictures.)
Welcome.Hi, I can't see the pictures from this post. We just removed a room-full of retired telephone switch gear. I'm trying to confirm if it's the same and the best place for it to go so that it doesn't just get thrown into the steel pile! View attachment 62454View attachment 62455
Not likely to be an alloy but likely to be a plating, and in the case of this gear a decent thickness given the time it was produced. You'll need to test though because there were also Nickel plated systems. Take a small sample and dissolve in Nitric and then test the solution. Alternatively take a sample to a guy with an XRF which would be fastest.Awesome! So are all of these grey spikes either silver or palladium alloy? View attachment 62466 View attachment 62467
I've not tried that!You can quickly check without resorting to acid...
you need a 9-27 volt power source. (direct current)
an aqueous solution of ordinary kitchen salt.
where to connect + and - can be seen from the photo.
the cotton wool has a palladium color, and there will also be a strong smell of chlorine.
This color will be even if there is only 10% palladium in the alloy.
nickel will give a dirty green color, silver will be covered with a cheesy coating.
Did you get the shelves with the circuit boards as well or mostly just the wire wrap stuff?We just removed a room-full of retired telephone switch gear.
I am not sure from your post if you are planning on selling these or attempting to recover the PMs yourself.a row of old circuit boards as well as six telecom cabinets
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