In message
,
Telstar Electronics writes
I thought that there were some stand-alone RF clippers. Surely there is
no reason why they cannot be external units, inserted in-line between
the mic and the mic socket (ie audio in - audio out)?

Huh? How can you do RF clipping outside the unit? Not a chance...
Any unit that's inserted in the mic jack is no RF clipper.
www.telstar-electronics.com

As I said. "Obviously they have to contain 'all the works' (oscillator,
balanced modulator, compressor, clipper, filters, balanced demodulator
etc)."

And, as Paul said, "At least Datong made a stand-alone unit. There was
an article about RF-clipping and the Datong unit in Wireless World a few
decades ago."

But maybe Datong didn't know what they were doing.
--
Ian