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Old 13th Sep 2018, 10:42 pm   #4
GSBX1220
Pentode
 
Join Date: Jun 2018
Location: Glasgow, Scotland,UK.
Posts: 127
Default Re: Telephone style microphone ID req

Hi

Yes, I did poke it with a meter & it is resistive. 47 ohms. There is also an electrolytic capacitor in series with it For some reason.
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Richard
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