It has been almost 11 months since we made a video, but yesterday Steve got the bug and recorded this one with the help of Mike Kenlan working the camera. This episode is about different types of preamp tubes, and Steve offers some suggestions for substituting one tube type for another. Steve wishes he had mentioned tube pin straighteners in the video. Many times the pins on NOS and even brand new current production tubes are bent and not aligned with the socket hole spacing. A pin straightener will fix mis-aligned pins, avoiding damage to the tube and socket.