[Collins] Collins FS: 51J4 ser. 48XX with Cabinet or not

[Wn4i]

For sale :
This 51J4 from the FAA never been used very much so  the PTO  is still on
frequency ( very rare ) .
It is with the latest factory mods : 20 DB more gain in the IF with an
inside  Master ""  IF GAIN "" next to the ""  S-METER ZERO  ""
The Mecanical filter switch  is not too noisy ( for a change )
I did install a 9.4  Khz  AM  filter ( VERY much in demande to listen to the
2 sidebands ) taking the place of the 1.4 Khz on position 1 ...or  2 or  3
.. as you like .
The CRYSTAL Filter is carefully aligned so that the Rejection Tuning is in
the center at 12 clock .... good for 50-60 db rejection on each side .
This Radio came to me  Rackmount  but I also have an original  cabinet for
it ..
( needs a paint job )  for $ 75.00 more .
Sensitivity is .4 / .5  Microvolts to start moving up the Smeter  or  .2 /
.3
for the Minimum Discernable Signal .
With top and bottom  covers like new .  no rust , no dust on the chassi top
.
New Power cord ( Collins Gray ) .
The front panel is very clean , a very nice greenish-gray , needs only a 1/8
inch touch up on the very bottom edge under the small CAL  screw driver
adjusting  .....most probably from going in and out of the rackmount .
Not one screw missing .
The Khz dial is pure white like the S meter , the Mhz dial is  the usual
brownish .
Under the cover are 4  mini  Bristol keys like new. .
With a good quality copy of the 1975 Book ( with the mods indicated above )
.
Price on demande .

I also have for sale a nice  R 388  very clean and glossy black front panel
with the 2 original metal military tags above the dial .
Have a good weekend
73
Yves Wn4i
Yves Pautard
5833 Dryden rd.
West Palm Beach
Florida 33415.....561-689-8819