Quote:
Originally Posted by LordOVchaoS  You simply can not light up a tube with 9 volts, can't be done. The tube is working and coloring the tone but it just won't light up. There are actually three ways you can use a tube in a pedal and I personally don't like the tone of any of them. The LEDs are purely cosmetic. |
I dig the Mesa V-Twin, but a big case with two tubes and a dedicated power supply doesn't really qualify as a pedal.
Quote:
Some preamp tubes don't light up even in amps... mine don't. They're lit but the filament is encased so you can't see the light  Thank god for Engl and their LEDs.
|
Most people seem to forget that they are supposed to be
vaccum tubes, which means they are not really supposed to glow. Since we cannot get a perfect vaccum, the glow comes from the burning of trace gases, and becomes brighter the more power you push through them. Generally, preamp tubes look like a little dot of light to me.