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Old 11-21-2022, 07:45 PM
rschultz rschultz is offline
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Join Date: Jun 2007
Location: Knoxville, TN
Posts: 1,289
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The Shure circuit worked! See circuit diagram in previous post, or that link. I had a scrap piece of pcb and some 47 mfd caps, so I soldered it up... quick, dirty, and rather ugly.

The noise floor is now the same as with the battery. I plugged the guitar in (with internal mic) and it sounded like a mic'd guitar!

It will take some time for me to get a better breadboard and enclosure design, etc. But it works!



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'10 Wechter 5712c - Fishman Rare Earth
'13 Jaffrey #26 - Malaysian Blackwood!
'21 Gretsch 5622
'22 Furch Red Pure G-LR - Barbera Soloist
ST-300 Mini + DIY mic preamp

Last edited by rschultz; 11-22-2022 at 08:05 AM.
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