One of my other hobbies, active since 1964, was Amateur radio. Much of a ham's equipment was home built, and the 'tank' components in an amplifier are silver plated.
All industrial NDT labs that perform radiography (X-ray) develop their own film.
The spent developer contains a lot of silver, from the silver nitrate coating of the film. They always recycle it to reclaim the silver, but if you ask nicely, they likely will give you a few gallons.
A glass, or ceramic tank, a battery charger, and you get very nicely silver plated parts. The longer it's in the solution, the heavier the plated thickness.
|
Hybrid Mode