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Did you check L71 and R68 also?
Edit: also R69, L70, and the contrast control - these are all things that load the input or output of the delay line and need to match the impedance properly to prevent echos.
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Old TV literature, New York World's Fair, and other miscellany
Last edited by old_tv_nut; 08-14-2017 at 07:38 PM.
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