[Johnson] Johnson Invader 2000 problem
George
gshapow at rochester.rr.com
Tue May 25 19:33:24 EDT 2004
Hi all,
I just wanted to thank everyone who replied to my "no grid current" problem.
I haven't found the problem yet but I have a lot of leads.
I checked the actual exciter output today and my bird meter reads 125 watts
out. That should be plenty to drive the PA. Tonight I'm going to open up
the cabinet and check the 500 volt bias on the 4-400s as well as all
connections from the 6146 tank to the 4-400 grids. If that doesn't find it,
I'll have to start replacing caps and the LC supressor circuits. That's
almost all there is.
I'll keep everyone posted.
Thanks again
George, NY2O
More information about the Johnson
mailing list