I understand I am asking a bit much here, so I will be nice and give you a hint : #6.
For example I have FIVE type 317 scopes !
So I'd guess it's a 317
WHAT ?!!
How can you possibly remember that ! You're not human, you are a computer ! Computer memory !!
Yes you won !!!
You just won a big cookie, hope you are not on a diet !
Yes... my SIXTH Type 317 glowing Tek scope !
My oldest too, being SN 001895. Well I don't know, I have a USA made one, B002369.
Don't know how the two numbering systems correlate, a US made 2369 may possibly be older than a European made 1895, since I assume in the US they were churning them at a higher rate than in the rest of the world.
Anyway, this one popped up at 50 Euros, and seller willing to ship. Looked in good nick in the only pic the seller would show, the front of it. Of course unit was not plugged in, and no details in the ad other than two words... ad description was only two words long, I kid you not. It just said "For collectors". So I was in for a big gamble but I didn't care since I have already restored a 317 so this one was only meant for spares. So even if it were void of tubes, with a blown transformer and a defective CRT... it would still be a good source of parts to maintain and restore my Tek scopes in general, not just the type 317's. So really I had nothing to lose.... and what do you know ? Despite it all looked rather unpromising, it turned out to be my best 317 buy !
First, it had some half decent packaging. Still not what I would call appropriate, but there was some attempt, above average (which doesn't say much really..), and it was enough for the scope to arrive 100% intact !
Cabinet needs a respray if I were to restore it which I am not, but other than that it's in EXCELLENT nick inside out !!!
Face plate in great shape and all the bright work in great shape as well. Just some old sticker residue to remove but that's easy enough, not worried at all.
Inside, despite it being a very old unit, it is, past a veil of dust of course, in actual excellent nick ! Zero corrosion anywhere, no greasy stuff on the tubes. Looks like a very low mileage unit, confirmed by the state of the air filter which looks like new ! So it all adds up. I got a winner !
What's more... even though this was NOT mentioned in the ad nor visible in the pic... I had a great surprise : carton did not only contain the scope... it also contained a LOVELY original paper copy of the operation/service manual with a nice thick green cover with gold lettering, all the foldout schematics and what not ! This is a museum piece... this is the one I should be restoring ! .... So I am tempted to do so.... it only really needs the cabinet resprayed that's all....
Hmmm.... will get a variac and see if the fundamentals are OK : main transformer and CRT. If so, might fix it electrically and give it a quick wash inside, it really doesn't need much at all, no restoration as such, just a quick clean/wash !