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The rear panel of the OHR 500 showing the connectors.
The
OHR's three circuit boards are
installed on an H-frame
metal chassis. With the covers off, this is the top view,
showing
the receiver and oscillator boards.
The T/R (or bandswitching) board is mounted on the
underside
of the chassis, which serves to shield the more sensitive oscillator
and
receiver boards.
