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  #16  
Old 07-29-2011, 03:50 PM
DaveWM DaveWM is offline
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Join Date: Feb 2009
Location: Orlando FL
Posts: 5,607
I dont think I could tune it out, not sure but I think I tried that. the fine tuning is very touchy, not sure if its a stripped gear or something else, I never cared for the fine tuning knob inside the channel select knob used on maggies. I will go back in and double check to make sure I have all the tube shields in place. other than this one issue it has one of the best pics of my roundies. It also does NOT have the line pairing issue I am fighting on the sylvania. the deflection boards are idenical as far as the circuit, but for a 80uf (sylvaniia) vs a 50uf( maggie) cathode bypass cap AND a .002 disc cap that bypasses the vert hold control (on the maggie, not on the sylvania). other than that they are the same. The sync pulse output has a different resistor value (39k maggie, 220k sylvania) to ground. Perhaps attenuating the sync pulse more in the maggie. the both have VDR's on the plate return circuit of the multivibrator, I have a replacement on the way for the sylvania on the outside chance that somehow that is causing my pairing issues. I hope to get the sylvania in the same room as the maggie and do some side by side comparisons. I may do the .002 bypass on the vert hold just to see if it makes any difference. I just checked the ctc-16 also has a .0022 cap bypassing the vert hold pot...
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