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KT66 - JJ Electronics

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Item ID: 004871
Starting at: $35.00
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Octal power tube (Max Plate Watts = 25W). This Slovakian tube is tight and punchy with a more straightforward mid body than its 6L6GC cousin. The highs are also more subtle than those of the 6L6GC. In overdrive, it is tight and hard driving with glassy highs.

Apex Tube Matching
Matched versions of this tube use Apex Matching
OptionOur Part NumberUPC/EAN
Apex Matched PairT-KT66-JJ-MP609722123136
Apex Matched QuadT-KT66-JJ-MQ609722123143

RoHS Compliant

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Product Reviews

3.50 out of 5 based on 2 reviews

Bright, aggressive and probably the farthest from sounding like a genuine MOV-GEC valve. These can also draw way too much plate current, and will drift way off in a short period of time. This is about my last personal choice of a KT66. These also lacked the headroom of a MOV KT66. In my Conrad Johnson, these were horrible. They were okay, in a Kitchen 75 watt guitar amp, but I swapped these for Chinese valves.

seb-ear-aaaaox.net - March 27th, 2015

Take my review with a grain of salt as I'm a brand new KT66 user. And if you read enough around the interwebs, you'll learn that there are "real" KT66s (Genelex? Shaguang?). And there are "fake" ones - not true to the original design. And my point is, I don't know that I care. These JJ KT66s sound fantastic in my Fargen Miniplex MK2! I had a duo of Winged C EL34s in it and there was nothing wrong with that, very aggressive. But at Fargen's recommendation, I'm running one EL34 and one KT66 right now. Great growl and articulation as you continue to crank it. The JJs also seem very solid in terms of build. Heavy, pretty, built for business. I'd give 5 stars, but I just haven't tried enough 66s to know if they're that good. (I should note that I'm a pretty big fan of all JJ power tubes, but not their preamp tubes. They just seem to get the bigger bottles right to me).

Reid Douglas - October 4th, 2014

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