Quote:
Originally Posted by bandersen
You can eliminate the retrace lines with a minor modification as described in the Admiral service hints ...
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I saw that as well, though my Admiral is in storage right now. But it looks like you find the 8200 ohm resistor and 0.047uF cap connected in series, one end to ground and the cap to the vertical oscillator circuit. This node also has a cap feeding the vert output tube's grid. You connect a 0.1uF or so cap to the junction of the 8200 resistor and 0.047uF cap, and the other end to grid one of the CRT. Insert a 270K resistor in the line feeding that CRT grid, so the bypass cap on the brightness control doesn't shunt the signal from the vert osc to ground. You probably should use a 630VDC or higher cap here.