Mike Baker wrote:
Hello to all.
When I was a kid I recall reading something in an old CQ/73/QST
magazine about a modulation method for AM called Tayor Modulation. It
was sort of a precursor to controlled carrier and used a seperate
modulator tube hooked up sort of in parallel to the final amp and
usually was the same tube type. There was no modulation transformer
like in typical class B High level modulation schemes.
snip

Hi, Mike

You are thinking of "Rothman Modulation" April 1952 CQ.
(Which I can't find). If I recall correctly, controlled
carrier screen voltage for the finals was derived from the rf output
carrier power. I remember a picture of an outboard box with a couple
of 6Y6 style tubes (perhaps it was a single 6Y6 and a rectifier tube),
modulating a pair of 813's.

73,
Ed Knobloch