6sn7 cathode follower preamp. I plan to use just two tubes, one for each channel.
6sn7 cathode follower preamp. The main design parameters fall into three points – low-distortion, low-gain and low output impedance without using a output buffer/cathode follower. Do I use a little feedback to get Jan 15, 2006 · About Brians comment: There was a recent thread where someone showed two schematics from a preamp with the 6SN7, both from Frank, one with coupling capacitor, the other without (both where 1st stage: anode follower, second stage: cathode follower). Jul 13, 2025 · Is this an octal socket? If so, what's wrong with putting a 6SN7 in it? That will cut down on the gain needed in a preamp, and you won't need the cathode follower. Questions, Why is C! rated at 400v? Is that correct? Also, shouldn't it be an Dec 5, 2022 · Separately, it's always a good idea to include cathode stops for follower outputs driving the cold cruel world outside the box. Am considering using a cathode follower output stage after the gain stage. You can still use a preamp, but it would be a different one Nov 8, 2016 · Want to build a Super simple line level preamp. This is JEL’s schematic and power supply: Just a single tube (76) direct-coupled to a cathode-follower (one section 6SN7) for low output impedance drive. In this mode, the signal is applied to the grid of the second triode, and the plate is connected directly to the output. Then I found a schematic from Vacuum Tube Valley for a 6SN7 or 12SN7 preamp with elevated filament voltage. Bottlehead used 12AU7, Frank deGrove has an (old thread) on a 6SN7 version, i have a version with 6DJ8/6922/6C23∏ (can use 6N1P but it needs twice the heater current). tl fc kkuv5i ujtaen0 uuobthk mzvpp kkwguh0 yok pa n01b