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Old 2nd June 2003, 04:18 PM   #1
Joel is offline Joel  United States
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Default choke/transformer loaded Nuvistors

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?
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Old 2nd June 2003, 08:51 PM   #2
Colt45 is offline Colt45  Serbia
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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
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Old 2nd June 2003, 09:29 PM   #3
Joel is offline Joel  United States
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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.
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