will
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Here is a quote from Kevin at Upscale Audio:
"A PCC88 is a 7-volt filament version of the 6.3-volt filament ECC88. Aside from the difference in filament voltage, the two tubes are the same. That means, no problem-o, bitchin’ sound, and less money. There is never an issue substituting these into any 6DJ8/6922 position."
Quote from Brent Jessee:
"It is virtually identical to the 6DJ8 except for the heater rating, which is 7 volts. ............You may want to try a 7DJ8 for the longer heater life in a 6.3 volt circuit, and the lower price!"
I use them a lot in my Torii and was planning to see what they sound like in the Taboo once mine comes....which is soon!
You could always call Steve if you remain concerned.
From the write-ups and in my experience, it seems that Decware amps are built with a fair bit of tube flexibility. But there are areas that don't wash out. For example, I have had a hard time with distortion with 6N1Ps in my Torii MkIII, and in the end, Steve said that the 6N1P can be borderline in the Torii. This is technically different though, the 6N1P is more about different current draw - 600mah filament as opposed to 300mah. I am ignorant about the details of what a 7 volt filament will do in the circuit relative to a 6.3, but I like the sound in my Torii. The Taboo is Taboo for a reason though....Steve played around with it outside the tech norm to get the sound he wanted. So it may have its idiosyncrasies too.
Anybody?
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