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Preamp tubes 12V heater

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  • Preamp tubes 12V heater

    Hi

    Has anyone any experience with 12Vdc heater voltage on tubes such as ECC83? I have a neat little power supply which feed 12Vdc, 3.0A...

    I figure it should be possible to run the two heaters of the preamp tubes in series.
    In this forum everyone is entitled to my opinion.

  • #2
    Always did 12VDC regulated heater supplies in high gain amps. First two tubes are enough but sometimes I feed all preamp tnbes from the regulated supply. To avoid CF failure you can elevate them as well. Because I get my PTs from local businesses I always order a separate 15VAC/1A secondary just in case.

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