Hello
The Voltage on my PT Plates is a little bit high. It`s 500 Volts. How can I bring it down a little?
Thanks
High Voltage on Powertube Plates
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Derkoettner
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rsi
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Re: High Voltage on Powertube Plates
There's a ton of ways. One simple way is to put a high power Zener in between the pt center tap and ground.
The voltage will drop by the value of the Zener. So, a 50v Zener will drop it by 50 volts.
The voltage will drop by the value of the Zener. So, a 50v Zener will drop it by 50 volts.
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HTH
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Re: High Voltage on Powertube Plates
Assuming the wattage will take it - thats gonna be a big honkin' zener to drop 50v off 500v.rsi wrote:There's a ton of ways. One simple way is to put a high power Zener in between the pt center tap and ground.
The voltage will drop by the value of the Zener. So, a 50v Zener will drop it by 50 volts.
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stef
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neikeel
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Re: High Voltage on Powertube Plates
What is the amp, what tubes are you using?
Have you measured your heater voltages too (if they are high then changing the PT primary tap setting might be a simple option for a little lower (but not 50v tho'
)
Have you measured your heater voltages too (if they are high then changing the PT primary tap setting might be a simple option for a little lower (but not 50v tho'
)Neil