Foster Seeley Analog FM Demodulator .....needs a little cleaning boosting tweeking... untested

368

04:56:17

In answer to :    http://everycircuit.com/circuit/6039273503981568  bottom section is the analog (100Hz AC signal) FM ......frequency modulated 1.47kHz carrier of  the 555. Above is my effort at a Foster Seeley FM demodulator. It needs a little tweaking.  I'm open to criticism with it....hopefully not unkind!  The red trace output settles around the required 100Hz as a copy of the original signal. (at least...that is the idea). The transistor on the 555 was necessary, since attaching the modulated wave to the demodulator did itself alter that initial  carrier wave here on EC when taken there directly from pin3.
(unwanted AM signals can be a problem with this type of demodulator)

published 10 years ago

kiani

6 years ago

@2ctiby you are a fake.. .. You don't know anything electrinics,,, here is the nmos you setup.. http://everycircuit.com/circuit/4739876294230016

2ctiby

6 years ago

Kiani is a demented liar.

kiani

6 years ago

This post is exact copy from internet with some maipulations. It is badly written, in such a way to keep "Viewrs" in suspense...2ctiby is a charlatan, he oretends he is a exoert,. Be aware and do not use his post as any kind of reference.

kiani

6 years ago

Its pointless to have any technical discussion with @2ctiby, and be carful he is removing comments. First talking bullshit, you tell him, he is blaming you to have no idea, but then behind you removing comments with his bullshit ! What a little asshole @2ctiby is, and i can proof that what im saying!

kiani

6 years ago

http://everycircuit.com/circuit/6594477488340992

kiani

6 years ago

2ctiby is a useless barking mad dog... Just yapping barking.. He thinks he had the monopoly on mosfets....and played fake proffessori... Since we started on mosfets.. He was exposed of lack of knowledge,, , he does not know much about electronics or mosfets.... Now he is just desperatly bitches, and spamms our posts..

lensrulz

4 years ago

To all intelligent EC users, please ignore the comments posted above by EC's most notorious fool!

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