Need help with SB401

[Dan Pividal N4VET]

Last week I ran a help on an SB401 that had a fluctuating grid current
problem.
This weekend I went to work on it.
I found that if I pushed down on the center of the unit near the back of the
LMO the grid current would pop up to normal.
I opened the unit and began to look for bad solder joints bad grounds, etc.,
in that area.
I found a bad joint on one board and a bad ground.
I also sprayed the switches while I had unit apart.
When I put it back in the case and on the dummy load the grid current problem
was fixed but now I have only 20 watts output an all bands.
The plate voltage is low  (about 220) and seems that the SWR is acting funny.
I have opened the case 5 times and retraced my steps with no success.
I think it may be the relay (ant) but I am not sure.
Can anyone shed some light on this problem.
I am at the end and ready to take it to a shop.
Thanks, Dan N4VET

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