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RE: Warmer sounding output tubes in VTA 70

It uses metal and carbon films in sensitive positions on the driver board. I'm assuming metal film in path for clarity. coupling caps are K-40 Russians.

I really don't want to start swapping components just tube roll. You are very correct and also reflecting what Bob said about how you can get the most effect by changing the center splitter tube on the driver board.

The driver tubes that came with it were GE 12AU7. One GREAT tube! I tried a few other vintage brandings but my findings in general were a rolled off top end and some degree of clarity degradation. LIke Sylvania, RCA non black plate, RFT, think that's it? The new production TungSols were excellent.

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