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#33
11-06-2014, 10:14 AM
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In the absence of a width sleeve or an operative width control, there's a coupla ways to reduce width.
1. increase the value of the resistor feeding the screen grid (G2) of the H output tube. This reduces the voltage on G2. First try about a 5% increase in value of the resistor, and go from there. 2. Add resistance in the cathode leg of the H output tube. Try 50 ohms as a starting point. The caveat to these methods is that HV is reduced proportionately with the width. 
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