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Std EditionBattery Powered Tube Amp

Profile:Bluetooth Tube Amp (SET) using 12BH7 and 12B4A tubes. Utilizes NK01B HV Driver for B+. Powered by 13-18VDC.

License: Public Domain

Published Time:2021-07-13 04:01:22
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Description

Inspired by Usagi Electric's 48v Tube Amp. To acheive usable volume/quality/utility, I'm driving the tubes with a pair of NK01B Nixie drivers (heavily filtered). In addition to various discrete component changes, I added bypass caps on both preamp cathodes. Output xformers are Bogden T725 Audio Xformers from Amazon, using the green or blue taps. EXTREMELY LOUD with 8ohm speakers and full volume, no clipping. Comfortable listening at 50-60% volume. Freq response can be adjusted by adjusting interstage bypass values. 

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PCB_Low Voltage Tube Amp

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