Getter material doesnt' need to be hot to do its' job.
Old tubes can work a long time. In my main rig, the preamp is using tubes from the 1920s, and the ones in the amps are from the late 20s through 1940s.
-Ed
Old tubes can work a long time. In my main rig, the preamp is using tubes from the 1920s, and the ones in the amps are from the late 20s through 1940s.
-Ed