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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: Re: Loftin White 2A3 voltage high posted by Quest on January 30, 2007 at 09:38:36:
I have two suggestions that will avoid adding additional resistance to the supply.First, it sounds to me like you are not using a high enough wattage cathode resistor, which is causing it to fail. You should aim for a power rating of 3 to 4 times the actual power drop through the resistor.
Second, you can add resistance to the cathode of the 2A3, and rebalance the voltage divider to the driver so that it is at the correct bias voltage. It will change the driver operation point, but it may allow you to experiment with drivers.
Alternatevly, use modern high power dissipation monoplate 2A3s like the Sovtek, Shughang 2A3c , or JJ that can eat the voltage up. Just make sure adjust the value of the cathode resistor to suit.
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Follow Ups
- Put the voltage to good use - David McGown 01:34:32 01/31/07 (3)
- Re: Put the voltage to good use - Gerado 15:22:11 02/01/07 (2)
- Re: Put the voltage to good use - David McGown 16:53:07 02/01/07 (1)
- Re: Put the voltage to good use - Gerado 22:32:43 02/01/07 (0)
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