Eventually I intend to move the late Collins setup in this picture to my home QTH and bring up the S-Line separates set up.
This “Round Emblem” combined transceiver with external VFO for split operations is the final itineration of the S-Line series and was sold new in the mid/late 1970s.
- KWM-2A transceiver
- 312B-5 remote VFO and station console
- 30L-1 amplifier
- SM-1 microphone
- Power supply is under bench
The other Collins station I own is a “Winged Emblem” first of the S-Line series with separate receiver/transmitter. That station is a 32S-1 transmitter, 75S-1 receiver, 312B-4 station console, 30L-1 amplifier, separate speaker and a power supply. The receiver/transmitter track each other usually. It dates from 1958 to 1960 from dating the serial numbers.
It has amazed me how many complex cables interface the various units. There are roughly a dozen cables in the KWM-2A station and about five-six more in the twins S-Line one. Many are simple, but some are complex and some are uncommon – things like RF coax with RCA plugs…..
The microphone jack is a military size and I had to source some as spares.
The KWM-2A station got great reports today using a SteppIR CrankIR portable antenna. Even worked some DX.
The audio has that warm friendly tube-amp sort of sound. Got great reports which I have to admit surprised me. I hadn’t expected it as there are so few adjustments possible compared to a modern rig.
I’m not happy with this particular SM-1 microphone and did make most contacts using an Astatic D-104 “lollipop” microphone instead. The SM-1 will go off for service.
I have a good ways to go in learning to use this gear, but as much fun as I had it is worth the study and practice time to get it right.
Made a interesting contrast to this weekends QSOs done with a barefoot Flex-6300 on the same antenna.