The 807 is a very tough tube. Get a copy of the GE Essential Characteristics tube book from Antique Electronics Supply ( or other tube literature ) and look at the 807. There are lots of wonderful new old stock 807's available at good prices. VTL used the 807 because it is a very rugged reliable tube. Your local tube tech may not be familiar with it. It has an anode cap. This should tell you something about what kind of plate voltages this tube is made to handle. Drop a line to Luke Manley at VTL and ask him. Ask him if he thinks 6L6GC is the way to go.
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