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Vacuum Tube Audio Gear
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Amp fusing?
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Budget 300B - elevated centre tap for 6SN7 heaters
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Yet Another Color Preamp
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Bob cooke
DIY Champ
Feb 29, 2024
300V boost converter for HV. 12V laptop supply at 4A with LM7806 regulator feeding heater supply filter caps.
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300b build
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Bob cooke
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