1986 Hitachi 25'' console.

[rca2000]

I do not suspect if has much to converge--I am sure it has an in-line tube I do not recall ANY set later than maybe 1983 using a delta tube. Even if it did--doing convergence should not require using an iso. Only of you do some WORK on it--will that be an issue, or are on a concrete floor or such while playing with the chassis.

[Dreamsbeard]

Originally Posted by rca2000

I do not suspect if has much to converge--I am sure it has an in-line tube I do not recall ANY set later than maybe 1983 using a delta tube. Even if it did--doing convergence should not require using an iso. Only of you do some WORK on it--will that be an issue, or are on a concrete floor or such while playing with the chassis.

Well I did a quick clean and balance of the 3 guns(they where quite low and the red was smearing) and that seemed to throw the blue gun out of wack. The red and green are still properly converge, but the blue is now completely misconverged. If I remember correctly, the first two rings on the crt neck are for purity, and the others for convergence right?

The clean and balance also threw the grayscale off with a green tint, but after tinkering with it for 15 mins, it came back ok (it was perfect before). It was the first time I did a grayscale adjust, feeling proud of myself right now