ml wrote:
does this rule also hold true for example i've opened some tuners
and linear amps, often, i see straps instead of wire going to the
larger coils and switches, even some switch box's have straps from
relays to connectors etc would wire have been 'better' and or
avoid the proximity effect??

Proximity effect isn't a factor unless conductors are very close
together -- I suggest you review the previous postings which explain it.
As far as "better", the answer is that it probably doesn't matter, since
either a wire or strap can usually be pretty easily made large enough to
make loss negligible in those applications.

Roy Lewallen, W7EL