Difference between 6JN6 (Berning output) and 6JB6 tubes? - diyAudio
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Old 8th January 2008, 04:35 PM   #1
GordonW is offline GordonW  United States
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Default Difference between 6JN6 (Berning output) and 6JB6 tubes?


Other than the obvious difference in basing (the 6JN6 is duodecar, the 6JB6 novar), is there ANY significant difference between the 6JN6 and 6JB6?

I'm thinking of cloning a Berning EA-230... which originally uses 6JN6 tubes... however, I have BUNCHES of 6JB6s, and very few 6JN6s. I also have a quad of Novar sockets... that's a plus.

I've compared what I can find for spec sheets, side by side... and for all the alignments I can find that match (voltages, currents, etc), the tubes look virtually identical, except for very minor differences in element capacitance (and the 6JB6 actually looks lower than the 6JN6, a tad).

Anyone found any differences between the two, in either practice or in spec sheets?


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Old 8th January 2008, 05:00 PM   #2
SY is offline SY  United States
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A wide variety of sweep tubes will work in that circuit, including the 6JB6. It's an interesting and in some ways very innovative circuit, which I've copied shamelessly.

Good luck!
A philosopher is a blind man in a dark room looking for a black cat that isn't there. A theologian is the man who finds it. - Mencken
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