EHX/Russia seems to be in a contest with itself to produce the biggest, baddest audio output tubes. First the KT120, then KT150, now KT170!
https://shop.ehx.com/item/kt170%20tungs ... -tung-sol/
850/650 volts max, 85 watts plate, 11 watts screen(!) Probably get 150-200 watts out of a pair.
It'd be cool to build a hifi amp with those just to show off the glass, lol.
			
			
									
									
						Tube size wars
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- pompeiisneaks
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Re: Tube size wars
I don't see a reason to spend 800 bucks just in power tubes for a stereo PP, also not so linear (look the very incomplete datasheet).
It would permit to have a lower Raa, so an easier OT, and still be in the 160 Wrms area. But then... is it really needed to go that far?
I usually play music through an EL84 Hi-Fi I've built and that gives out around 20 Wrms per channel, plenty enough for my Klipsch.
			
			
									
									
						It would permit to have a lower Raa, so an easier OT, and still be in the 160 Wrms area. But then... is it really needed to go that far?
I usually play music through an EL84 Hi-Fi I've built and that gives out around 20 Wrms per channel, plenty enough for my Klipsch.
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				Stevem
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Re: Tube size wars
I don’t see the point!
Replacing one failed one from a pair would cost more then a quad of 34s or 6L6s.
About the only plus side that I can see in terms of Hi Fi use would be being able with just the use of a duet producing like maybe 60 watts of class A power while being biased for class AB.
			
			
									
									Replacing one failed one from a pair would cost more then a quad of 34s or 6L6s.
About the only plus side that I can see in terms of Hi Fi use would be being able with just the use of a duet producing like maybe 60 watts of class A power while being biased for class AB.
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						Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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				thetragichero
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		Re: Tube size wars
frick part of me is intrigued by these big tubes for a BIG geetar/bass amp (saves some chassis space not having to have 6 power tube holes for 6550s/kt88) but dang that's a LOT... scored a barely used sextet of tung sol 6550s for like 70 bucks shipped. $200 per tube is too pricey for me!
			
			
									
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