The Johnson Matchbox has its own area of usefulness. There was a set of
calculations and measurements made on several "feedline impedance
transformation devices" a while ago. The article pointed out that is
was possible to dissipate much of the energy in the transformation
device which would result in interesting pyrotechnic displays. The
Matchbox had a foot in each camp, certain impedances were handled with
great efficiency while others made for another winter shack heater Now
to find the article.
Larry K2LT
Rick Brashear wrote:
I was asking because I have one and plan on using it with the RCA when
it's up and running.
Rick
Geoff/W5OMR wrote:
Rick Brashear wrote:
Would a KW Johnson Matchbox stand up to the load?
yes. That old Johnson stuff was DESIGNED for AM operation.
this crappy stuff that's out now, was designed for 2kW of ssb.
-huge- difference.
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