Re: D4D mods

Steven Weber

Yes, Q1’s collector should stay above 5V when 12_V is applied.




From: Adam Rong
Sent: Tuesday, July 30, 2019 10:33 AM
Subject: Re: [crkits] D4D mods


Hi Steve,

Thanks for your sharing. I will test them. One thing to confirm: If we add a diode between +5V and the collector of Q1, when 12V_R is present, the diode will be reverse biased? If not, I suppose it will mute the audio output.



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