Denial

I protest! You don't need a DSO to get autoset! Tektronix had this in 1965:

http://w140.com/tekwiki/wiki/3A5

OK, so they called it "seek", but whatever.

eslapion wrote:I have a 80 column display adapter for the VIC-20.

You do? Which one? How many different models existed?

I think I'm envious.

Hey, this guy is working on a modern TV and it shows what you may be seeing:

https://www.youtube.com/watch?v=nxOvYVcN1fc

That would need a tube with a grid in the first place. It's more likely a store brand TV has a standard shadow mask. The mask is part of the front face of the tube, it can't move, and if it did, it would affect the whole screen the same way. It's likely the color purity magnets on the neck of the CR...

..and if I may add to my little wool-gathering post above, when I was in college, my version of a digital storage scope was a Tektronix 531 with a Digi-View system pointed at the CRT. The Amiga stored the waveform digitally, right? :P I can't believe I didn't preserve that document. I was the only o...

Tek and HP came up with various CRT technologies over the years, the storage CRT and the MCP CRT are the most impressive to me. But they are both fragile and short-lived. (We can argue over who invented the storage tube, it was Hughes AFAIK, but Tek and HP perfected it. Maybe HP a bit more than Tek....

I think the important thing to note here is that it's a *storage* scope. Storage CRTs have limited life compared to non-storage tubes and are much easier to damage; you can burn in a waveform that won't erase. Use it in the non-store mode for now unless you are confident you get it. RTFM and believe...

Wow, how rare were these things? I've never seen one IRL.

I plugged 5 VICs to one RAM cartridge once.

It didn't work.

I think I'm alright, I just need some longer screws.

Anyone ever put a VIC-20 into a 64C case?