FlyMario wrote:Not sure how you could feed dot intensity.
FlyMario wrote:I found and purchased a Tektronix 2246 on eBay for $100. It has a Z input on the back. Should be fun to play with for an electronic NBTV. But still, need to focus on my Fred Flinstone mechanical one for now.
Harry Dalek wrote:FlyMario wrote:I found and purchased a Tektronix 2246 on eBay for $100. It has a Z input on the back. Should be fun to play with for an electronic NBTV. But still, need to focus on my Fred Flinstone mechanical one for now.
Yes its a good first step in construction a NBTV monitor without having to worry about the high voltages ,if you take care you can move on to a full CRT Build ..Lots of good reading on the forum on past projects on this .
This is a place where older technology still has a place and doing the same thing a different way .
Andrew Davie wrote:I have a bunch of small CRT tubes in original packaging that I am about to give away for the cost of postage/packaging.
I've decided I'm never going to use them. I'm traveling at the moment, but in a few days I could post a list.
FlyMario wrote:Do you guys know if Ebay from Bulgaria is safe? They have good ratings so I suppose its pretty safe. Cheap anyways.
FlyMario wrote:I am kind of confused. Most crt tubes have this electromagnetic coil which I believe drives the beam around. The tube I purchased ( that little 2 inch round one) does not have that coil. I see examples of people using them and yet no coil. I can't imagine how that is supposed to work without one. I think the tube is probably from the 70's ... so surely it is not something new.
Is 1000v like very low current or is it going to knock me on my ass? I only ever been hurt by that flyback thing on the tube.
FlyMario wrote:Wow Harry! Thanks a ton! Lots of good info there. Should be rather fun to work with.
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