[TowerTalk] Are All Low-Pass Filters Alike? -

[David Thompson]

I have a Drake TV-3300-LP that went south while operating 40 meters with my
8877 AMP running 1400 watts out.  Reading the filter its 1000 W Max which I
assume is input not output.  The coil in the filter melted at one end and
now rattles around inside the filter.

I also remember a B&W 1KW LP filter that arced over inside back in the late
60'S.  I had been using it with a single 4-400A amp at about 800 to 1000W
pep
and the first transmission with a then new NCL-2000
amp cooked it.  Turns out they used this black plastic
as an insulator.  I doubled the plastic and it still works
fine with my 500 watt spare amp.

Marshall Emm at Morse-X/Milestone Technologies bought AMECO two years ago
and might be able to
answer questions on the AMECO filter.  HE has a web page for MOrse-X.  I
suspect its of the same design as the B&W and the Drake and designed for
the old KW input limit.

I do agree with K1TTT that they are probably not needed much today but they
sure make you feel more comfortable especially on 15, 12, and 10.

Dave K4JRB