• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

VR tubes in single ended circuits

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It seems that VR tubes can be a little tricky to incorporate as regulators in single ended designs. I get a significant speaker pop when the ionization voltage is reached on power up (because it quickly drops to the regulation voltage).

I know others are using them, but I have yet to hear anyone mention similar problems. The only solution I can think of is to apply B+ before the heaters. Though this is generally bad practice. Anyone got any tricks?

For the time being, I'm using a Zener diode. Though it would be cool to use a VR tube instead (they look cool and I have a quantity of them).
 
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