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Old 04-13-2014, 01:33 PM
old_coot88 old_coot88 is offline
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Join Date: Sep 2009
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Quote:
Originally Posted by DaveWM View Post
I presume you mean the 12AZ7 dual triode...

...what makes you think there is a demod problem?
Well, it seems like blue portions of the chroma information are suppressed or 'not there', hence not able to render purple in the flesh tones.

Meanwhile, luma information appears overly blue due to blue screen being set a tad high.

Have you set the grey scale (i.e., with color turned off, each gun extinguishes at exactly the same screen setting)?

Re. The Portacolor clone (if it's a GE clone), doesn't it use that uber-simple 'ringing burst' in lieu of a referance oscillator?
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