From looking the data sheets over, it seems like a 6DV4, or a 6CW4 (for more gain, or smaller input signals) for example, would be ideal when loaded with iron. High mu, combined with low Rp - so you would get all the gain (68 in the case of the 6CW4), and still maintain excellent frequency response - something that's impossible with 6SL7's and other oldies.
Does anyone have experience with these micro tubes?
Does anyone have experience with these micro tubes?
Ive got a 6DS4 here somewhere, its pretty close to 6CW4.. ive always wanted to do something with it, but i forget where i put it, and it's socket, and i forget if it was good or not.. 
but im too ghetto for chokes anyways. i'd use a resistor
but im too ghetto for chokes anyways. i'd use a resistor
Well, you could use a resistor load, but then you'd never get more than half the mu out of it in voltage gain - which then defeats the purpose of using the nuvistor in the 1st place, IMO.
6DS4 is high mu, almost identical to the 6CW4.
6DS4 is high mu, almost identical to the 6CW4.
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