Triwall of robotel scrap

[powerbuy]

I have a triwall of scrap Robotel electrohome units (most were very high retail value, but all are currently non-functional and broken). The boards have some visible gold, but I am not sure if there is anything worth keeping in the face panel (button panel). It is quite easy to disassemble and appears similar to keyboard mylars, but with small "button"contacts. I assume the traces on the ""mylars"" are silver, but would there be anything worth keeping in the contacts?

 

[Juan Manuel Arcos Frank]

Powerbuy:

Maylar seems to content silver,but you have to check it dissolving one in nitric acid.

Metal contacts are gold plated but you need many kilos of them to get a couple of gold grams.

I hope it helps

Manuel

 

[SapunovDmitry]

Long long ago Steve and others had a thread on Mylars. They don't yield much. They are just for fun.