[Heathkit] Need Help SB401

[Edward B Richards]

Hi Dan;

If you haven't done it yet, tighten all the screws around the edges of
all the boards. Good luck.

Ed Richards K6UUZ


On Thu, 11 Dec 2003 23:38:44 EST OTAKEBI@aol.com writes:
> I am having a very interesting problem with my SB401.
> At times I get no RF output in tune or SSB or CW.
> If I pull up or push down near the SSB filter the RF output goes to 
> normal.
> However, the grid reading on the meter at full output goes up and 
> down and 
> does not hold steady.
> If I push down in the same area I can get it to hold steady and 
> stays in the 
> normal range.
> I have checked for bad connections under the rig and have added 
> hardwire 
> ground to the boards but no luck as to a fix.
> Seems that the problem is worse when rig is cold and takes place 
> less and 
> less as rig warms up.
> I know the relay is under the rig in this area.
> Could it be relay related?
> Could it be related to SSB filter ground?
> It is in the same suspect area.
> Pushing on the SSB filter seems to cause problem or fix it but why?
> This problem is driving me nuts.
> It is so intermittent that I can't track it down.
> All help is appreciated.
> Thanks,
> Dan N4VET
> 
> 
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