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Original Message
Amperex CV492
Posted by acfix.bob on June 20, 2017 at 21:31:03:
Hi Folks. My first post. I am a guitarist who has also been a professional radio technician. I have used valve amps and preamps for the last 40 years and don't intend changing that at all !!!
I am underway with some valve amp projects, so hoping to learn and share with this forum.
I have some Amperex CV492, 12ax7. These are NOS ( W German) and I'm pretty certain they are ex spares from Broadcasting equipment.
Amperex 12ax7 appear to be well regarded but I really can't find much information on CV492 (variant ?). My research indicates CV is a Military term for "Civilian use"
I'm interested in people's knowledge of this valve.
regards Bob