Joe and Drakelist,
You definitely should not be driving the grid current to excessive levels as
this can easily damage the tube. A couple of thoughts:
1. The L4B was designed and sold when the legal limit was 1000 watts
input for CW and 2000 peak input for SSB. At a true 1000 watts i
hi,
you'll probably get a lot of responses but i'll throw my 2 cents in...
1. the L4/L4B does not have an exhaust system that will keep the tubes cool if
you use something other than SSB on the SSB position. The plates should show
some color but if they become orange that is too much. The am
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