Junk Panels

Atimes,people ask reason why we repairers(myself inclusive) always
have a lot of junks set in our workshops .Well,there are some
components that are not available in the market and you can only find
them on panels that are junks.Components on them are more better than
those that are sold in the market.These junks are also useful for
comparison purposes in a case where you have a burnt component,its
value can be known from junk of similar panel.when there seems to be
nothing useful on the panel that is when it is disposed.