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This Post Has Been Edited by the Author
In Reply to: RE: 6SN7 circuit posted by Tube747 on March 26, 2017 at 23:54:30
I said comparatively low gain. The max. theoretical gain for a 1 grid driven LTP is μ/2. 6SN7 μ = 20. As drawn, the hybrid exhibits approx. 17 dB. of gain. If that's too much, lift the non-inverting grid's stopper from ground and connect it to a tap on 1 Mohm resistance across the O/P jack. That portion of the resistance between the "hot" O/P and tap should be non-inductive. Meter matched carbon comp. parts (for good channel to channel balance) is the cost effective method, but (naturally) Mills NIWW or Caddock film are the "super/duper" way.
Eli D.
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