"ken scharf" wrote in message
.. .
To Hijack an old thread...

The way tubes were numbered sometimes....
The 25L6 and 50L6 are NOT 6L6's with different heater voltages.
Actually both of these tubes are IDENTICAL with the 6W6GT except for the
heater ratings.

Ken, isn't the 6W6 a high perveance tube, hence the relatively high
filament current? If so, it might work well in a TX with slightly
lower plate volages. I have a sleeve or two of those looking for
a project...

Pete