hpetew wrote:lefty o wrote:hpetew wrote:The best vacuum tubes currently manufactured come from former soviet bloc countries. I don't think I'd buy an intake valve from them though.
you got a lot of use for vacuum tubes? LOL
Yeah, in guitar amps, nothing sounds the same and no American company makes them anymore...
Guitar amps, high end audio, recording studio pre-amps, microwave ovens, radio transmitters, electro-magnetic weapons.
There is a start-up in the USA making tubes
http://www.rchlabs.com/our-facility.
Most of tubes come from the former soviet countries or china, BUT with US investment to get the quality better.
So with any titanium part made in Russia or China , I'd wonder about quality control.
There were some titanium retainer failing a few years back. They were being machined with screw machines and had too many stress raisers.