quick question fisher 400 IF can

DaveWM

Well-Known Member
Z4 the primary is the bottom? top is for the indicator correct?

this is for the 4 IF tube models. I am doing the alignment per the instructions (non modulated IF signal, vtvm at tp3 and chassis), and the eye tube is acting funny. after tweeking the IFs (top and bottom z1-z3 bottom only on z4) in mono mode the eye tube display is nill. the top of z4 does not seem to do anything for the eye tube at all. If I adj the bottom of Z4 will bring it right back (eye tube), but that's not the peak per the vtvm.
 
after messing with it I am sure the Z4 is opposite of the directions, the Top is part of the overall IF, the bottom is the secondary that adj the Eye tube.

I hope someone can confirm this for me.
 
Most of us don't do alignments, but we have all faced incorrect schematics and Fisher did do some funky stuff, so what you say may very well be true.
 
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