HELP with repair RCA TK-76

[austvarchive]

Turns out the tubes are rather tired, one of the cameras in particular when you cap the lense it looks like the "stars at night" (they even twinkle) not unlike dead pixels on a CCD camera.

Would anyone have some XQ1427 plumbicon tubes in their collection (i think thats the correct type?) I have plenty of vidicons and larger plumbicons. but not really any of the smaller ones like what were used in this camera.

Also could someone tell me what the type of lense mount the tk76 used? - it looks almost like a sony bayonet mount but slightly different. I am also seeking new lenses.

The viewfinders seem to give some trouble, i moved one the other day and heard zappy noises and it blew the fuse..