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"There is a light behind the tube only because its a starved plate design that Behringer implements. Its sort of a hybrid between solid state, and vacume tube. They put the lights behind it because customers "expect it to glow" Now you or I could be sitting here killing ourselves laughing (which lets face it, we should be as its pretty funny. However, it is in the chain, just not as much as I would like!"
If I remember correctly the tubes are still connected, and if I remember there was some high end gear that did the same;
A lot of processors are using "starved plate" designs so they don't have to deliver high voltages to the tubes inside, but the tubes still alter the tone. Tubes don't really "glow" in these designs, so Behringer added some PR enhancers, I guess.
Yes, because kids don't know this stuff, so if the tubes aren't glowing they will think it's broken.
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.
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.
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.
Agreed! It's a preamp not a pedal. I ran one of those into the effects return of a Blue Voodoo at a friends house and I'll be damned if it didn't slay!
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.
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.
A lot of processors are using "starved plate" designs so they don't have to deliver high voltages to the tubes inside, but the tubes still alter the tone. Tubes don't really "glow" in these designs, so Behringer added some PR enhancers, I guess.
Look what this guys do