6L6 is the designator for a beam power tube introduced by Radio Corporation of America in April 1936 and marketed for application as a power amplifier for audio frequencies.

While all 6L6 types are pin compatible with one another, some amps are designed only for the higher powered 6L6GC. When you replace your 6L6, you should make sure that you replace …

Feb 5, 2009 · So if you look at the bit of the twin layout below, you see there is a 1.5K resistor between pins 1 and 5 (5 is the grid), and the output from the previous stage attaches to pin 1. …

Aug 23, 2001 · The plate voltage should be measured from pin 3. Looking at the bottom of the socket, pin 3 is the third pin counting clockwise from the tube pin keyway. If you measured the …

Jan 18, 2012 · Because many amplifiers were designed for only 6L6 type tubes, they will often use pins 1 and 6 as unrelated connection points.

These are the ideal tubes for any guitarist who wants the best sound possible at a great price. They have a very dynamic response and offer a tight, controlled low end. The mids are thick …

Nov 7, 2015 · Put the red probe on pin 5 and the black probe on pin 8. For a 6L6, it should measure somewhere between probably -25V and -38V DC, and that measurement should be …

Dec 18, 2012 · In the original metal 6L6, pin 1 was used to ground the external metal can. In all glass versions of the 6L6, pin 1 has no connection to any internal element, so it is safe to use …

Mar 13, 2006 · The "spare" pin to use on octals (for screen Rs, etc.) is 6. This is N/C on 6V6, 5881/6L6/KT66, EL34, and 6550/KT88. Also, it' s safe to connect pin 1&8 on all of these (and …

Dec 11, 2020 · Pin 8 is cathode/g3 on both 6L6 and 7027. Pin 1&4 are g2 on the 7027, so connect 1 and 4 together. Pin 5&6 are g1 on the 7027, so if 6 is nc now, tie it to 5. That way …