William Warren wrote:
"LJ" wrote in message
om...
FA: Heathkit Balun Coil Set, model B-1. 1950's vintage, for HF ham
bands.
Here's the URL:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=30686910 87
Power rating?
Ratio?
Connectors?
The manuel says rated at 250 watts transmitter input power, so I would
guess that would mean about 200 watts output. I've run 500 watts output
into the set I am using and had no heating or arcing. Remember, when
they rated something years ago, they were usually very conservative and
these are open air coils - there is no core.
Ratio can be set for 1:1 or 4:1 by minor rewiring. I've always run them
at 4:1 and fed ladder line.
Input is a PL259, output is two ceramic feed through terminals with nuts.
I have two of the units and wouldn't give them up for anything.