Guitar Tube Amp

Step 22 The End???

More parallel 6DG6GT SE designs (or parallel PP) are churning away in my head. A three tube, 11 or 12 watt amp would be quite impressive. Or two parallel stages of two tubes each-- a "twin parallel" design.

And can the 6DG6GT be run higher than 200V, squeezing-out more wattage? The max spec for the 6V6 is 250V, yet they are commonly pushed to 350v, 400V and beyond. NOS tubes are notorious for absorbing punishment, and they keep on ticking...

So why is this class of tubes (6DG6GT, 50L6, etc.) ignored by amp builders today?

--They are a somewhat underpowered compared to classic power tubes (hence this "parallel" design.)
--They were commonly used in AC/DC "radio tube" amps, which many of today's builders don't respect.
--50 volts for the heaters is tough to achieve. In the old amps, all the tube were wired in series, and the wall "mains" were used directly. This is unacceptable, today. Actually, these tubes were originally designed to run the heaters directly off the mains...(although not the 6DG6DT variant.)
--Many modern builders aren't aware of the lower filament voltage variants (I, for instance, didn't know about the 6.3V version...)

Comments

[jack002]

I was wondering, do your volume knobs go up to 11?

[580_cox]

very helpful instructions! thank you!