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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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In Reply to: RE: I'm a tube convert... posted by John Elison on August 6, 2016 at 18:50:38:
Thanks much.
What's going on there is that, for the input stage, the top half of one 6SN7 serves as a plate load for the bottom half, which is acting as a typical triode gain stage, otherwise. Another way of describing it is that the top half acts as a sort of Constant Current Source, not a really stiff one but better than just using a resistor between the plate and B+. That stage feeds the second 6SN7, which does act as a cathode-follower to provide for a low output impedance, and the bottom half of that 6SN7 acts as a CCS for the CF, which linearizes the action of the CF. All good ideas, IMO. I bet it would indeed sound excellent. Moreover, you can tune it to your taste by rolling 6SN7s; they do each have a "flavor". The input stage tube would make by far the most difference, so you would only have to invest in one tube per channel. I love KenRad 6SN7GT, if plate voltage does not exceed 250V, which it probably doesn't do. Many others love Tungsol "round plates". YMWV.
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- RE: I'm a tube convert... - Lew 10:01:23 08/07/16 (0)
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