Hola! Perhaps you awesome peeps can resolve my query on bias..

[korovamilkdud]

I own a Splawn Quickrod. Voiced pretty well, but I'd like to try either KT66 or 6L6 tubes instead of EL34. I've been told I'll have to perform a bias mod in order to accomplish this change.

Now, I understand completely that Capacitors can store lethal voltages. Good thing I can drain them. So if I die attempting to follow your advice, you're off the hook now, and it is entirely my own fault when I find myself in a dark tunnel gazing at a bright light at the end of it.

I'm basically just trying to prepare for a mod if I can't set my bias low enough to accomodate a 6L6 pair.

[Old Tele man]

...CAUTION over ADVENTURE!

...have your local "qualified service technician" show you, that way you can WATCH how it's done correctly.

[booj]

The 6L6's or KT66's will require a higher negative voltage, which the bias supply may not be able to produce if the amp is set up strictly for EL34's. For example, you might need -55v instead of -42 volts