"It might be something else, but I would bet the contact on the 160 padding
capacitor is burned off. This is what the anti-corona washer reduced. Heath
did not use that washer.
It arcs there when the loading cap is too far closed (too much grid current)
for the amount of drive on higher bands, or if the antenna should become
grossly mismatched when at high power on bands other than 160. The worse
band for arcing the 160 padding contact is when on 80 meters."
Had a chance to do some eye ball/continuity checks today. All contacts on
bandswitch check out ok. Except, on the last wafer towards the rear one of the
lugs that hits on 160 only position has nothing on it. Some solder but nothing
connected. Contacts ok etc. but nothing soldered to the lug in that position.
Is this possibly where a capacitor once lived? I have the schematics and
diagrams and will have to go over all the wiring. One other oddity I see is
that there is a black wire coming out of the enclosure in front of the
bandswitch that is folded over and not connected to anything. Appears to have
been at one time connected to a ground lug at the plate variable cap fixture on
the front panel.Thanks,jimk2hn
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