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I need to correct something I noted earlier. This set was never a true delta tube per se, but always an in-line design on a delta dot pattern with the dot size and pitch of the day. The early CRT's using the dot screen were the worst picture possible. Just imagine a full picture cut from about 1/5 of the 21" roundie of the day.
Not so long in the history, GE changed to the stripe to improve the CRT. The lack of DC restoration continued to the end as I know. $$$. Convergence is simple with the in-line, but focus varied with the models. Never more than a voltage tap on a terminal strip.
Save your Compactrons! You will need them when you see the light and decide to get your own Porta Color.
Dave A
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