Swan 350

Swan 350 circa 1966

This is a radio I have never used before.  The Swan 350 was a popular rig in the 60's and 70's.  I repaired this one for my friend John W3JOI and enjoyed using this rig.  The radio is an interesting design using a single crystal filter in the IF.  The radio is powerful and has a good sensitive RX.  I also got to use a D-104 mic for the first time.  This radio will pin my 200 Watt meter quite hard and gets good audio reports.  It only took a couple of tubes to get it going again.

I checked into the Swan Tech Net today and was told the S/N of this radio (C 618852) was manufactured in 1966 and that the radio was produced from 1964 to 1967.  This one was late enough to have the one piece xtal filter instead of sockets for the individual crystals that the early ones had.  During testing I measured the B+ ripple at about 3v.  Stu K4BOV said that the it should probably be less than 1v so the filters are a bit weak.  Stu suggested to use 80-220 mfd caps rated at, at least 350.

The Swan Tech Net is on Sat PM at 2:30-3:30 or so on 7235.  Check it out sometime if you are interested in these oldies.