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T O P I C    R E V I E W
jmc3181 Posted - Feb 21 2007 : 10:39:43 PM
i'm interested on the op amp radio project and i was wandering if you could send me more information about the projects. because i am currently attending the electronic program and i need to create a final project in order for me to graduate. like for example how it works. it will be appreciated if you could help. thank you!
2   L A T E S T    R E P L I E S    (Newest First)
uf_o Posted - Mar 13 2007 : 03:28:33 AM
IC DS 1669 is not easly available in the market could you tell me its another equallent ic for digital volume control. my email is www.muf_o@hotmail.com" target="_blank">www.muf_o@hotmail.com
audioguru Posted - Feb 21 2007 : 11:49:05 PM
The opamp radio is a very simple AM crystal radio (look in Google) with an opamp to amplify the signal.
The opamp is not biased properly. It is inverting when it should be non-inverting.
The radio part does not have a proper DC nor a proper AC load.

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