Motorola 19k3 chassis ts-101 help needed - Videokarma.org TV - Video

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Motorola 19k3 chassis ts-101 help needed

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#13

12-06-2017, 03:52 PM

Kevin Kuehn Kevin Kuehn is offline

Workin' Late Again

Join Date: Jan 2011

Location: WI

Posts: 3,976

The difference is the Admiral has a dc coupled video circuit, therefore they applied the brightness bias to the CRT grid. Notice the lack of coupling caps from the video amp plate to the CRT cathode. On your Moto you have a .1uf cap coupling the video to the CRT cathode, which allows the brightness bias to be applied to the same point.

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