With all the hoopala here questioning honesty of selling various
8877-style triodes as interchangable, I didn't see mention of whether
the pulsed tube (having a longer anode ceramic) would have the same
Cpg, output capacitance. This may make a big difference in a
particular amplifier, esp at the higher frequencies. Beside the
obvious of it sticking up higher in the socket, the tuning may get
offset by the fixed tube capacitance, something to be aware of. Moot
point, since it was sold already, but be careful of interchangeable
sockets without heeding noninterchangeable tube characteristics.
73
John
K5PRO
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