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Audio and Video Talk
Valves / Vacuum Tubes
Having tube preamp Transformer wound questions
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<blockquote data-quote="marantz123" data-source="post: 946795" data-attributes="member: 16849"><p>Since its a preamp, assuming capacitively-coupled, why not go with a suitable low voltage AC supply, and voltage multiply it up to the DC voltage needed for the tubes, and run your heaters from a separate linear DC ( or SMPS if possible) supply ? With larger capacitors in the multiplier, you could get enough B current for the tubes. Will cost a fraction of what a wound transformer will cost. The only issue I can think of right now is that the B+ voltages are unregulated here, but so is it in a conventional tube supply but to a much lesser extent..... :nfi:</p></blockquote><p></p>
[QUOTE="marantz123, post: 946795, member: 16849"] Since its a preamp, assuming capacitively-coupled, why not go with a suitable low voltage AC supply, and voltage multiply it up to the DC voltage needed for the tubes, and run your heaters from a separate linear DC ( or SMPS if possible) supply ? With larger capacitors in the multiplier, you could get enough B current for the tubes. Will cost a fraction of what a wound transformer will cost. The only issue I can think of right now is that the B+ voltages are unregulated here, but so is it in a conventional tube supply but to a much lesser extent..... :nfi: [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Having tube preamp Transformer wound questions
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