There's a 7 inch crt with an electromagnetic ion trap and yoke you know where.
The number is 310212877975.
Could this be a 7DP4?

That's what it looks like, the electromagnetic Ion trap is correct for the 621 also, don't know why this tube has two traps though, unless the electro failed at some point and they just stuck a PM trap on the neck.

It sure doesn't look promising though.

If the seller removed all that junk from the neck he might find the number.

It's a good buy at $1.99, and might make a good rebuild for someone if it turns out to be bad. I wouldn't recommend paying a lot for it, however.

Tom- I'm lusting MIGHTILY over yr avatar...'Twould be a tough call to choose between a CT-100 & a pristine 621 like that..Guess I'd just hafta to whine & hold my breath til I turned blue 'n' got 'em both...(grin)

At the risk of going a bit off topic, here's the story of that set:

http://www.antiqueradios.com/forums/viewtopic.php?t=114614&highlight=621ts

http://www.antiqueradios.com/forums/viewtopic.php?t=115077&highlight=621ts

Tom

$63 bucks!
Anyone here get it?
I'd be curious to know if it was good.

I was the initial bidder just to make sure it got saved. I'm surprised it went so high.