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TURNER EXPANDER 400 AMPLIFIED MICROPHONE

Microphone Information Wiring etc, or if you just need help with choosing a good microphone for your radio.

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Drenalin
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TURNER EXPANDER 400 AMPLIFIED MICROPHONE

Post by Drenalin » Friday, 12 February 2010, 12:02 PM

Does anyone have the info sheet/schematic for the TURNER EXPANDER 400 AMPLIFIED MICROPHONE ?

I am looking to replace the LED that is not working and need to know the right LED to put in there.


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Tucker442
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Re: TURNER EXPANDER 400 AMPLIFIED MICROPHONE

Post by Tucker442 » Friday, 12 March 2010, 14:51 PM

Adrian I have the same problem, I have had this mic for about 5 years or so and didn't start to use it until this last week, I was wondering what that LED was for and was told it has to do with modulation so I am going to try a few different types to see what works and do a voltage check at the point that it is soldered.

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Lost Ram
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Re: TURNER EXPANDER 400 AMPLIFIED MICROPHONE

Post by Lost Ram » Monday, 22 September 2014, 12:22 PM

I know this post is really old!!! I have one but have not used it in years but I am pretty sure the LED only came on when the 9V battery was getting low.
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