Wasn't it Nikola Tesla who invented or discovered the basic concepts of
tuned circuits?

Doug


"Airy R.Bean" wrote in message
...
I have a copy of "The Electrical Review" from 1902 wherein
Signor Marconi is describing his experiments with "syntonising",
a means by which the station at Poldhu no longer interferes
with the station on the Lizard. It was clear from the article
(although I have not referred to it for several years) that he
is referring to tuned circuits.

We take many things for granted nowadays, but even the
concept of tuning was the subject of a patent in them thar days.

"Thomas H. Busch" wrote in message
...
Wikipedia has an entry for Tuned RF receivers that says EH Armstrong
invented the Tuned RF receiver in 1918. I think this is wrong.
Armstrong
was in the throes of patenting the superheterodyne circuit at that time.

Hazeltine invented the Neutrodyne, but this was an improvement on the TRF
circuit. Was it just one of those things that logically developed from
wanting a bigger signal for the detector?

DOUGLAS LOSTY wrote:

Wasn't it Nikola Tesla who invented or discovered the basic concepts of
tuned circuits?

Doug

Therein lies the 'rub'. Tesla was busy inventing them while other
people were putting them into actual use.

-BM

DOUGLAS LOSTY wrote:
Wasn't it Nikola Tesla who invented or discovered the basic concepts of
tuned circuits?

Sort of. He noticed resonance effects, but he never figured out how to
apply mathematics to describe them or predict them.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

In article , (Scott Dorsey)
writes:

Wasn't it Nikola Tesla who invented or discovered the basic concepts of
tuned circuits?

Sort of. He noticed resonance effects, but he never figured out how to
apply mathematics to describe them or predict them.

ISTR that Tesla invented the notion of tuning an RF transformer by adding a
third winding and tuning that to resonance, rather than try to tune the very
low-impedance primary (a half dozen turns) or the high-voltage secondary of his
Tesla Coils.

I *suspect* that some Grundig tube radios get their selectivity and sensitivity
out of hardly any stages, by using tertiary resonant windings a la Tesla in
their IF transformers, along with the usual tuning of primary and secondary.
--Mike K.

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