The 4E27A/5-125B has a 125 watt anode dissipation and max anode E of 4,000
volts. The 4E27 only 75 watt anode dissipation. I have not used them in GG.
At full input class C the anode glow is spectacular
John WA4EPI
Fuqua, Bill L wrote:
> I have thought of replacing the 813's with 4E27A's. Has anyone used 4E27A's
> in grounded grid.
> They are pentodes with 125 watts plate dissipation and wire the filaments in
> series since they are 5V.
> They should have a nice plate glow to them and go in the same socket.
http://www.tubecollector.org/4e27.htm
says the 4E27 has a 75 Watts plate dissipation.
??? I believe the 4E27 is more rare than 813s.
--
Ron KA4INM - Endless Loop: n. see Loop, Endless.
Loop, Endless: n. see Endless Loop.
-- Random Shack Data Processing Dictionary
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