Blow up pics of the 741pcs Optical Barrel

[forjack842]

Hi Chuck,
I'm a real newbee to the 741PCS PTU-1. I have the service manual for the 741 and as you say, there's no exploded pics of the barrel. Thanks for the link. THat helps alot for the alignment adjustments.
I'm having the spherical mirror recoated and should be back in my hands toward the end of this week. The upper flat is also out for recoating but several weeks out yet. I didn't remove the spherical mirror originally so the process of installing a mint mirror makes me a bit nervous. I've talked to John F on this and he reassured me its straight forward. I don't know, I like pictures before I risk glass. I'm planning to remove the barrel this weekend. John recommends I would have a easier time installing the mirror with it out. THe barrel will be easier to clean anyway.
I also have to repaint a black band about 1/4 inch at the center of the mirror. Since I've never seen the mirror up close this also makes me a bit nervous on a mint mirror.
I would have thought there would have been a restoration saga out there someplace maybe with pics. The RCA service techs must of had some training materials or supporting documentation on this barrel assembly to perform field work. I guess none survived or has been found as of yet. I guess once I pull the barrel this weekend, it'll fall into place. If you had pics already that would be sweet. But its not necessary to take any. I may do that for myself this weekend anyway. I'm sure I'll completely see the "light" once I dig into it.
Thanks for you help,
Jack