| Oh yeah, 7KY6 - Click HERE for Original Thread |
| Sch3mat1c |
Someone get out a 7KY6. Try it in pentode or triode.
:devilr: :nod: :devilr: :nod: :devilr:
(Don't worry about the oddball heater, it's within tolerance of 6.3V and most 6.3V will be running high (7V) anyway.)
Tim |
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| fdegrove |
Hi,
Hmmm...interesting specs.
Cheers,;) |
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| dsavitsk |
Very cool -- mu~30 and rp ~ 1K ... is that right? Pins are only slightly different from a 6688 or 7788, and it looks like a nice cheap lower mu alternative to those.
I've been looking for something to build a push-pull amp out of with some 5K:8 transformers, and didn't want to use the 2A3's I'm supposed to. These look to fit the bill quite nicely. |
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| pmillett |
This appears to be the same as an 11HM7 with a different heater. It makes a good driver tube for sure, especially in pentode mode.
Have you looked at the screen dissipation when in triode mode? A lot of the high Gm video pentodes when triode connected quickly exceed the G2 power ratings... G2 is usually the limiting factor (not the plate dissipation).
Also, as a triode, the miller capacitance is probably pretty high.
Pete
(some related pentode data: http://www.pmillett.com/pentodes.htm) |
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