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Original Message

Opinions please: need recommendations for a Triode driver for a 2a3

Posted by banpuku on January 16, 2017 at 16:54:36:
Recently, I modified my 6c6 pentode driver to work in triode mode. I really like the results. As such, I am seeking a triode driver tube that will work nicely with my 2a3 output tubes. My schematic below represents the 6c6 in pentode mode. I want the ability to heat the filaments with a battery, just like I am doing now with the 6c6.
So, please give me your recommendation(s) on which triode driver you prefer.
Thanks in advance for any input.
Pat

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UPDATE AS OF 2/7/17
1. First of all, thank you to all who have contributed to my initial post. Much appreciated
2. I strapped the 6C6 to triode mode and initially, the output was insufficient. Very weak. I very much liked the transparency and tone of the 6C6 triode, however it did not have enough drive. After trying several adjustments, I tried different values for the plate resistor (which is shown as 75k in the schematic). Inadvertently, the whole time I was using the 6C6 triode mode, the plate resistor was 6.8k ohms. I had mislabeled the resistor and thought it was 68k ohms. A couple of days ago, I reinserted the 75k ohm plate resistor. Now, there is plenty of gain using 6C6 triode mode. The amp sounds the best it has ever sounded at this point. FYI: I put pieces of masking tape on resistors to easily identify their value. In this case, I did a poor job of labeling them and it thus the confusion. Dang it!
So, now I am back to pursuing a DHT tube for the driver. The 6C6 (in triode mode) has a mu of 20 and a resistance of 11k ohms. Where does this leave us? I am still looking for a good alternative driver tube.
END OF 2/7/17 UPDATE
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