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I've measured the resistances of V20, starting at pin 1 and relative to chassis: inf, 0, (from pin 8 of V20), inf, 8 kohm, inf, 8 kohm, inf and 0. Interesting that pins 4 and 6 have much greater resistance than specified in SAMS (65 ohm). All pins of V21 read infinity relative to ground. Also one thing I've noticed is that if I back off even more on the horizontal drive a little more, the faint vertical bands just to the right of center disappear. Unfortunately if I back off to the limit of the drive capacitor I still don't get any response from the width or horizontal linearity control. I'm wondering what should the peak to peak voltage of the drive signal to pin 5 of the horizontal output tube be?
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