Flyback Questions

[miniman82]

No list for specs that I'm aware of, just the catalog showing what number flyback and the application.

Voltage: not really sure, it's not AC though it's a sawtooth wave form. I would expect peak to be slightly higher than what you get at the anode wire though, since you will get some drop through the rectifier tube (most will tell you how much on the data sheet). For example, around 30 or 40v loss is typical with the 3A3 rectifier. Not that it makes a big difference to the flyback or picture tube when you have 25,000 on tap.

Power: I can't speak for all sets, but the color roundies I have seem to use power and shunt tubes around the 30w class (6CB5 output and 6BK4 shunt tube). Doesn't mean that's the power the flyback sees, I would expect a little less on average like maybe 25w to avoid exceeding tube ratings. But there again we aren't talking about a low frequency AC mains transformer here, it's a ferrite core high frequency transformer operating in class C.