68kMLA Classic Interface
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| Green Phosphor Mod Connector Question | |
| Posted by: thegarse on 2020-12-01 22:31:43 Hi, what are some good options to get a green phosphor to fit in my Plus? The big 4pin on the b/w monitor doesn’t match the green monitor. I’m guessing making my own molex and soldering to the green contact points (leaving the thin cables untouched) thoughts?  | |
| Posted by: Daniël on 2020-12-01 23:39:25 You need to swap the yokes between the two tubes. | |
Posted by: thegarse on 2020-12-02 13:57:18You need to swap the yokes between the two tubes.Same orientation of the tubes? Thanks, theoretically I can put this B/W screen in the enclosure for the iic monitor right? | |
| Posted by: Gorgonops on 2020-12-02 14:51:57 One thing to be a little wary of is that those green phosphor tubes are a little more susceptible to burn-in than the white ones. An Apple II is less likely to have something permanently on the screen like, say, the Mac menu bar, so... just throwing that out there. But, yes, if the yokes physically fit you should be able to swap them. It can be a pain to get the yoke correctly oriented, though. | |
| Posted by: jessenator on 2020-12-02 16:49:40 Another voice: yes a yoke swap is necessary. It's a PitA, but for me it was worth it. I sort of made general marks for orienting them correctly, but yes, manipulation is required. I 3d-printed some channel lock pliers (not the most sturdy things ever...) that let me at least rotate the yoke with the Mac powered up. Then I tightened the clamp screw with a plastic screwdriver (which I also printed bits for my multi-driver tool), then powered off the machine and tightened with a proper metal bit. You'll still have to make other adjustments like the (can't remember the proper term) positioning rings, and sometimes the magnets. Your mileage may vary, but I got away with next to no adjustments to the magnets on one of my tube swaps. Then of course there are the analog board controls as well. And to second what Gorgonops mentioned, you'll want to balance the drive and brightness controls and generally use it on a dimmer rather than bright setting. My green tube had quite the burn in from its past life as a CNC control monitor, and the persistence is quite a lot longer when the brightness and drive is cranked up. Also, the ears on your green CRT don't look as far off as mine did so you probably won't have to fashion mount adapters like I did :lol: | |
| Posted by: thegarse on 2020-12-02 20:46:15 Thanks for the assist. Looks good!  | |
| Posted by: thegarse on 2020-12-04 11:59:38 Moved the BW over to the IIc enclosure.  | |
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