Opinions - Sell or Process These Older Boards

the EAC B1a12a transistors...err more accurately called voltage regulators... will have been silver soldered thru hole, the gold fingers in the other picture transmit power so they probably are heavy plated. Obviously your looking at alot of caps and resistors that add weight but not value...the redeeming factor is you have some good ICs, couple plastics and a few ceramics and the "multi-layer monolitic capacitor" components are big has hell...I think if you have the weight might as well send them out and see what you get back in silver...it's a gamble if your after gold...I don't think you will find as much as you think.