Phono Preamp 4 Building a better filiament supply

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Added by Arslan
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Here I revise my filiament power supply to work with 300mA series string valves Phono Preamp 4 Building a better filiament supply
Category
Technology
Tags
filiament, power, heater, phono, preamp, getting, started, series, supply, valve, tube, vintage, electronics

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