break in period?

[old_tv_nut]

Originally Posted by radio nut

so, last question, when I turn this set on it comes up in horizontal lock fine. after that for about 30 seconds the picture gets wavy then goes back in lock and stays fine. should I try to adjust something or is this normal for vacuum tube technology?

Might be normal for Muntz technology.

[Chip Chester]

The break-in period in audio gear mentioned isn't "infant mortality" or spec drift. It's stuff like a capacitor changing sound characteristics in apparently perceptible but possibly unmeasurable ways. And cables being directionally oriented to signal direction thru use or by design. Stuff like that. The audiokarma site (and many others) are rich in conversation on such matters.

Component value change due to heat does indeed happen, of course.

Chip