Saved another Portacolor

[DaveWM]

no focus rectifier, they use boost, B+ or none based on taps. not hard to setup, I did a complete CRT swap so it was completely out, did not take too long to get the hang of it.

they are a bit different due to the inline layout. IIRC the purity is setup with the green gun (the center gun).

if its got the 11SP22 then you have the large dot aperture screen, not the best for high resolution.

I have that model too its my favorite of the bunch. Check the CRT see if its the 11SP, if so keep an eye out for an 11WP, it has the smaller dots, makes a nice pic.