Valve mic preamp design incoherent rambling

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Last night I finished up a bench top power supply that I will use to start building up and testing circuits. It's been a while since I've had much time to put into this project as I've been doing a lot of recording, lots of repair work, building out a new patch bay and spending lots of time with my family. Thanks so very much to Mr. Thompson-Bell (@ruffrecords) for supplying the PCBs and fielding some of my amateur questions and thanks to everyone here for your continued inspiration. Also - we should collectively come up with a good solution for cutting IEC openings. I used a Dremel tool and a bastard file. It worked out okay but there must be an easier way.

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Board looks like it would fit sideways closer to frontpanel, away from toroid transformer.
Use a filtered input jack for the AC.
 
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