[Heathkit] [Heath] 6146B Issues

[L L bahr]

You know, Pete, I have been saying this for years.  However, as soon as you state there is no problem, here comes the famous 6146 again .  The problems stated in this paper have to do with Motorola VHF/UHF equipment and the fact Collins changed their inadequate neutralization capacitor which really had nothing to do with changing over to 6146B tubes.  If you look at the published RCA spec sheet, you will see the differences between both type tubes is extremely minimal.  (I think maybe RCA knows what they are talking about since they invented both the 6146A and 6146B type tubes and also state they are interchangeable.  Then you hear RCA retracted this statement.  However if you ask the person who says they retracted the statement for a copy of the RCA retraction, NONE IS EVER PRODUCED!)  There is no way a ham HF rig will have a problem stemming from moving over to 6146B tubes. If they have a problem, it is because of some other rig problem in the rig and not caused by using 6146B tubes.  So let the lemmings believe their myth.  Both you and I know the truth about this subject.

Lee, w0vt

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I've never run across any of the rigs that I've owned over the last 50
years where 6146B's would not work in place of 6146's and A's and that
includes Heathkit (my original Apache has been running 6146B's since the
70's), Hallicrafters, B&W, Johnson, Kenwood, and others. I won't refute
Glen's original findings (obviously he had a problem with them back then)
but for anyone to say they won't work in all rigs as a replacement is
highly exaggerated. 

Pete, wa2cwa