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Mystery Weston Volt Meter

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  • Mystery Weston Volt Meter

    I've seen these before, but am wondering what they might have been used for with the voltage set at 3.3 volts?

    https://www.ebay.com/itm/ORNATE-BRAS...BaD2Vw&vxp=mtr

  • #2
    If I remember correctly 3.3 volts was a common tube filament voltage.

    Comment


    • Mike V. Florida
      Mike V. Florida commented
      Editing a comment
      Should have added ...for portable tube radios running on batteries.

  • #3
    I was also thinking it must be for very old tube filament voltage, but I'm more in tune with 6 and 12 volt tubes, like 6SA7 or 12SA7.

    Comment


    • #4
      Ya know, in the '70's I got my Class 1 Radio Phone Technicians license with tube theory and I was sitting here wracking my brain to remember the voltages and I can't remember any 3volt tubes. Now this is not to say there weren't any, I just can't remember any, and like Tom, I am thinking they were either 6 or 12volt filaments.
      You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!

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