Topband: Antenna Bridge

[zoltan.pitman at vodafone.com]

Dear Reflectees, 

I'm looking for documentation of the 916A RF Bridge unit of made by General
Radio Corp in Cambridge, MA. This is an old unit in a well-shielded wooden
crate operating up to 60 MHz with the extra transformer set. It was used to
be used for antenna impedance measurements by the broadcasting company. 

The construction of the transformers it goes beyond my understanding. If
someone knows how those axial chalices work, please explain it to me. 

Thanks, 73!

Zoli HA1AG