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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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30th May 2023, 4:03 pm
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#1 |
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Dekatron
Join Date: Feb 2009
Location: Chesterfield, Derbyshire, UK.
Posts: 3,762
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AM/FM Module connections
I thought I would have a play with this module ,I think it came from a scrap audio sound system , I am trying to find out where to feed the five volts in ,the ic is an LC72131, any suggestions. Mick.
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30th May 2023, 4:14 pm
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#2 |
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Heptode
Join Date: Apr 2003
Location: Ayr, Ayrshire, UK.
Posts: 631
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Re: AM/FM Module connections
Pin 17 according to the data-sheet.
Andy
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G-QRP #12697 |
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30th May 2023, 6:34 pm
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#3 |
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Dekatron
Join Date: Feb 2009
Location: Chesterfield, Derbyshire, UK.
Posts: 3,762
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Re: AM/FM Module connections
Thanks for that Andy, I will try and trace it back to the connector, there are two three leg devices near the vhf tuning coils ,I am thinking the may be varicap diodes. Mick.
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