WOW....thanks so much for the input. Let me try to answer some of the questions
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Oops....its not a 350 watt modulator its a 300 watts. The thing is a monster. Has 4 - 12au7s into a pair of 6146's then into a pair of 6080s then the pair of 811s into a CVM-4. Can't figure out the 12AU7s. Lots of components missing or dead ended. I'll probably just make a new front end for it. Seems like an over kill to me.
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truth is I've been leaning towards the 4-400 with the 813s as a back up
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Can drive it with my 32v3. (one of 3) That's another disease i have "Collins stuff. "
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Let me drag out my 4-400 schematics that I've collected over the last year or so.
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don
