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#1
12-27-2009, 06:36 PM
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Now I tried the sweep generator, (sweep generator only, no marker generator here). I didn't adjust anything, I just wanted to see what the final response curve looks like. Now before I go messing with the alignment to try to get this to look right, does this look bad because of something I'm doing, or could the alignment actually be this far off?
I followed what it says in the sams. I have the sweep generator connected to a coil of wire wrapped around a 6J6 (from which I removed pin1). Using 4.5v negative bias between R21 and R30. And the scope is hooked to the grid of the video output tube. Last edited by Adam; 05-11-2014 at 08:34 PM. 
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#2
12-27-2009, 10:30 PM
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It looks like a trap is misadjusted. Set them first with an AM generator. The rest may fall in.
Vary the bias somewhat to see what it does to the curve. If it is erratic, you may have a bad IF tube. Try the last IF and mixer first. Don
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