Circuit board from late 60s

[mike449]

Hello,
I came across few dozens of these boards. Are they worth anything?
There is an eBay seller advertising them for $10 each, but I guess this doesn't mean anything.

 

[Yggdrasil]

Hello,
I came across few dozens of these boards. Are they worth anything?
There is an eBay seller advertising them for $10 each, but I guess this doesn't mean anything.



View attachment 55391View attachment 55392

Depending if you have them or you are buying them.
If you have them already, you can obviously sell them on Ebay.
I doubt there are enough value to warrant processing them comparing to selling them.
You need some 0.15 - 0.20 gram per unit to break even at 10 dollar a piece.

 

[macfixer01]

If you’re talking about $10 per board, then in no way are they worth that kind of money.

 

[Yggdrasil]

If you’re talking about $10 per board, then in no way are they worth that kind of money.

Maybe as a working component in a system they can...
But as for PMs no way.

 

[kriskokalisto]

Maybe as a working component in a system they can...
But as for PMs no way.

Or as collection thing. I have an old rectangular NEC CPU NEC0MB 2RX0430B which goes for 150 dollars as a antique collection thing.

 

[silversaddle1]

Those look like old Motorola boards. I'm sure that's where I have seen those type connectors before.

 

[kurtak]

They may have collector value which would be more value then scrap value - but collector market is a limited market (harder to find buyers)

Scrap value - the pins are clearly the heavy 3 grams per pound pins (instead of the normal 1.5 grams per pound)

It takes A LOT of pins to make a pound

The IC chips are low grade (bonding wires) chips - about 0.2 - 0.25 grams per pound plus (looks like) gold plating on the chip legs

It takes A LOT of chips to make a pound

The capacitor "looks like" a silver/tantalum capacitor --- IF it is the outside canister is (may be) silver with a tantalum pellet inside

Are they worth $10 per board ?

Find out by stripping the pins off one board - weigh them & calculate per pound value --- strip the IC chips weigh & calculate per pound value --- test the capacitor outer canister for silver - if it is consider it a bonus

Then consider your time & chems to process - that will tell you if they are worth it or not

Kurt

 

[snoman701]

That's not a silver tantalum, just one of those aluminum ones that looks like one and gets you excited.

 

[macfixer01]

Those look like old Motorola boards. I'm sure that's where I have seen those type connectors before.

Those flat forked pins are made by EDAC. They were used on boards from a few different companies. The only other one I can think of right now is on GE Fanuc CNC boards, which is where I collected most of mine from.

https://files.edac.net/edac/content...rd Edge Connectors English Ordering Guide.pdf