PM's in older components

[scrappile]

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Should I be looking for certain things if it has tubes in it, before chips,.. names like Micamold, Brooklyn, sangamo electric on the Mica caps or if a thread you might know of

 

[Smack]

That looks like appliance type components. If they are and they are old, most likely going to just be silver for pm's until you get to the new machines with circuit boards in them.

 

[scrappile]

That looks like appliance type components. If they are and they are old, most likely going to just be silver for pm's until you get to the new machines with circuit boards in them.

They are from some old test equipment, board is fro an HP 403 meter,..really wondering if tubes and other things have enough to look for them while I'm clearing out some stuff.

Thanks,

 

[element47.5]

For the most part, only in connectors (stuff from the 60's & 70's & 80's) while stuff from the 30's-40's-50's is likely to have zippo in terms of PMs. Your hp 403 (70's) has edge connectors, probably. I am surprised to see those big mica caps in there. Some of that era stuff may have some very exotic tubes with some gold and silver plated connectors. Very little, I would reckon.

Edit: Ahh, you show a mixture of parts. Selenium rectifiers at the top; mica caps, wirewound rheostat/potentiometer. Nada, IMO.

 

[MMFJ]

Should I be looking for certain things if it has tubes in it, before chips,.. names like Micamold, Brooklyn, sangamo electric on the Mica caps or if a thread you might know of

I don't know about any brand names, but I've found some of those pots to have some gold plated connectors in them (not sure about the brown one on the bottom right, but I'd check it as well as the one on the board, which might be a tune-able cap with some silver on it - can't really tell from the picture).

I did several videos on vintage electronics - perhaps some of them can help you. Check out the link in my signature line and search 'vintage electronics'.

What you are asking for (I think) is to get a "List of Vintage Parts That Contain PMs" - well, sorry to say, that list does not, will not and can not exist! During the 'vintage' times (and even today, really...) parts were made from various metals - sometimes, whatever was available and sometimes, whatever was cheaper! I've pulled apart some stuff from the SAME board, and with the SAME casing and part number and one has PMs and the other doesn't! I know that isn't what you are asking for, but if you find some 'source' to tell you exactly where you'll find them, then you can tell them for me that they are lying!

The whole 'game' of Urban Mining is much like the real game of mining in the dirt - nobody knows exactly where it can be found, but given some time and effort, you can learn where NOT to look - or, at least, where it is very, very unlikely to find enough good stuff to make it worth your while.

Look at it this way - it is a great way to have some fun, and once you get a big lot of stuff, you can go through it pretty quickly. With practice, you will find that unless it is "obvious" stuff, it may not be worth your time to go after it and tearing all those things apart won't yield very much in the long run. It is really a choice on how you want to run your business. Some say "Gold is gold, wherever you find it and at whatever cost to get even the tiniest grains". I say "Get the FAST penny, not the LAST penny", which, to me, means to get in, grab the easy stuff (and a bit of the harder stuff, too, if you have time) and get on with making some bigger money. In several months of working like this, I'd say I didn't toss more than about $20 worth of gold, but saved countless hours of tedious work in the process!

 

[qst42know]

Audio geeks pay dearly for certain capacitors. Spend some time researching what they are looking for.

If I'm not mistaken both square capacitors in your photo are silver mica capacitors but I haven't opened any to find out for sure.

 

[scrappile]

Should I be looking for certain things if it has tubes in it, before chips,.. names like Micamold, Brooklyn, sangamo electric on the Mica caps or if a thread you might know of

I don't know about any brand names, but I've found some of those pots to have some gold plated connectors in them (not sure about the brown one on the bottom right, but I'd check it as well as the one on the board, which might be a tune-able cap with some silver on it - can't really tell from the picture).

I did several videos on vintage electronics - perhaps some of them can help you. Check out the link in my signature line and search 'vintage electronics'.

What you are asking for (I think) is to get a "List of Vintage Parts That Contain PMs" - well, sorry to say, that list does not, will not and can not exist! During the 'vintage' times (and even today, really...) parts were made from various metals - sometimes, whatever was available and sometimes, whatever was cheaper! I've pulled apart some stuff from the SAME board, and with the SAME casing and part number and one has PMs and the other doesn't! I know that isn't what you are asking for, but if you find some 'source' to tell you exactly where you'll find them, then you can tell them for me that they are lying!

The whole 'game' of Urban Mining is much like the real game of mining in the dirt - nobody knows exactly where it can be found, but given some time and effort, you can learn where NOT to look - or, at least, where it is very, very unlikely to find enough good stuff to make it worth your while.

Look at it this way - it is a great way to have some fun, and once you get a big lot of stuff, you can go through it pretty quickly. With practice, you will find that unless it is "obvious" stuff, it may not be worth your time to go after it and tearing all those things apart won't yield very much in the long run. It is really a choice on how you want to run your business. Some say "Gold is gold, wherever you find it and at whatever cost to get even the tiniest grains". I say "Get the FAST penny, not the LAST penny", which, to me, means to get in, grab the easy stuff (and a bit of the harder stuff, too, if you have time) and get on with making some bigger money. In several months of working like this, I'd say I didn't toss more than about $20 worth of gold, but saved countless hours of tedious work in the process!

Thanks for the video tip, Would love the magic bullet list, really was just looking for "be on lookout for ______" Which I gather is Pins,connectors and plated other things . Not really a Business , I hit government Liquidation back in 03 to 06, before the crowds I guess, cause I have gotten 17 pallets and usually 3 or 4 for $50, now it starts at that. I sent 470 lbs of boards and some plated , thinking those two shippments would be about it. $1800 or so for them. still finding boards and things. Taking things apart has always been fun, several hundred lbs of copper from transformers (not as mush fun) .


Keith

 

[scrappile]

Audio geeks pay dearly for certain capacitors. Spend some time researching what they are looking for.

If I'm not mistaken both square capacitors in your photo are silver mica capacitors but I haven't opened any to find out for sure.

They are 2500 volt, six where in a power supply that was to one of the tubes, red danger high voltage stickers every where,.. I have plenty big ones from Military power supplies, think they put them in line with battery so when bass hits it takes up what the battery can't handle. I get side tracked too easy , so I'll have to work on them later. :lol:

 

[scrappile]

For the most part, only in connectors (stuff from the 60's & 70's & 80's) while stuff from the 30's-40's-50's is likely to have zippo in terms of PMs. Your hp 403 (70's) has edge connectors, probably. I am surprised to see those big mica caps in there. Some of that era stuff may have some very exotic tubes with some gold and silver plated connectors. Very little, I would reckon.

Edit: Ahh, you show a mixture of parts. Selenium rectifiers at the top; mica caps, wirewound rheostat/potentiometer. Nada, IMO.

Yeah, that was just some I had from things I've stripped. I'm sticking to connectors for pins and plated things . thanks to everyone for Information/ experience about them.

here are a few more I'm rounding up.

Really tell that stuff back then was made one at a time,..

Edited for size of attach

 

[MMFJ]

For the most part, only in connectors (stuff from the 60's & 70's & 80's) while stuff from the 30's-40's-50's is likely to have zippo in terms of PMs. Your hp 403 (70's) has edge connectors, probably. I am surprised to see those big mica caps in there. Some of that era stuff may have some very exotic tubes with some gold and silver plated connectors. Very little, I would reckon.

Edit: Ahh, you show a mixture of parts. Selenium rectifiers at the top; mica caps, wirewound rheostat/potentiometer. Nada, IMO.

Yeah, that was just some I had from things I've stripped. I'm sticking to connectors for pins and plated things . thanks to everyone for Information/ experience about them.

here are a few more I'm rounding up. View attachment 1

Really tell that stuff back then was made one at a time,..

You got some nice stuff here - you are certainly on the right track with it!

As for gov't surplus stuff - that is where we get a lot of it (or used to - like you say, the word kinda got out.....

Before I ever knew of gold recovery, all we did was sell the parts - and since all those old military connectors, etc. weren't "selling", we just tossed 'em in the trash...... My partner tossed about 100 lbs of high-grade pins one time - I saw him do it and said "hey, I want to keep a bag of those, maybe some day I'll find a way to get the gold off them" and let them sit on the shelf about a year. When I ran across them again, I did some research, found this forum and got them refined. 11 lbs yielded over 12g...... would have been nice to keep that 100 lbs!

Keep it up, looks like you are certainly doing the right stuff.

 

[scrappile]

everything form Tents to Military 6x6 truck parts, aircraft anyway getting good ideas on what to save and probably won't refine myself. I can see now that would be about six or more months to be safe and able to do something. so getting material for now. Must say that nothing else on the net like it here.

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