John menard
Forum Participant

Hello group

I purchased four NOS type 32 tubes to replace the original Rogers AC type 32 tubes in this model 420. The original tubes work but I’m told the original Rogers tubes are hard to find and should be put away. The issue I have….the new tubes only have a single post on the top instead of two like the old tubes. Is there a way to wire these in or are they just not compatible?