[ARC5] tuning knobs (and local controls)

Lenox Carruth radios at sbcglobal.net
Wed Dec 31 16:42:16 EST 2008


I wish I knew where to find two of the MX-2/ARR-2 plugs as I need them for my receiver setup.  Anybody got a couple?

Lenox Carruth
WA5OVG


Mike Wrote:


The official AN/ARC-5 equivalent is the "A.R.C. 6787 Wired Plug".
I've never seen one.  Another plug which could be used is the
MX-2/ARR-2 that Jack refers to.  It is wired like the A.R.C. 6787,
plus it has a connection between pins 2 and 8 to connect receiver
audio output to audio bus A.  This was required for AN/ARR-2
installations using the early MT-7/ARR-2 single receiver rack,
which does NOT have an audio bus A / bus B select switch.  (That
was later added to the MT-7A.)  There are a lot of MX-2/ARR-2 plugs
around because they were used every place that the AN/ARR-2 was
was installed.  Since all AN/ARR-2 and AN/ARC-5 racks other than
the old MT-7 have audio bus switches on the rack, the AN/ARC-5
manuals say that the connection between pin 2 and 8 should be
lifted on the MX-2.  Thus it becomes electrically identical to
the A.R.C. 6787.

Mike / KK5F


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