"radiosrfun" ) writes:
"Leanne" wrote in message
...

Years ago, when I was doing bench work on marine radios in a shop that did
some cb work as well car stereos, Some one brought in a six meter amp that
had a tapped coil in it. There was a big label inside saying that if the
tap was removed from the coil that it would radiate around 26 MHz which
would be out side of amateur frequencies.

Leanne

I never "seen" any personally - but Lafayette Radio Electronics - I
"believe" made amps for 10m and 6m. I wonder if theirs had any "handy"
labeling and tapping - going on?

And they were on the CB page, and including the disclaimer "illegal for
class D Citizen Band use". I don't think they even bothered with
six metres, just from the bottom of the CB band to the top of the 10 metre
band. Needed only a couple of watts to drive them, and put out no more
than a 100watts (if that), making their purpose very apparent.

It was that sort of thing that led to the US amplifier rules, though
my remembrance is that the Big Catalog places may have made those
amplifiers disappear from the pages before, perhaps feeling a sense
of responsibility. Or maybe it's just the Big Catalog places like
Lafayette and Olson and such were out of business or fading by
the time the rules were brought in.

Michael VE2BVW