Photo courtesy W1LJN
This transmitter first appeared in the November, 1958 issue of QST magazine. The transmitter had the capability of being coupled with its companion receiver, the 75S-3, and gave the operator the flexibility of having a "transceiver" rather than having to operate two separate units. This pair is powered by a 516F-2 power supply and controlled by a 312B-4 station control. The transmitter sold new for $750.00, the receiver $680.00, the station control $185.00.
This unit actually combined the circuits of the 32S-1 transmitter and the 75S-3 receiver into one self-contained unit. Weight was 18 pounds and the overall dimensions are 6-9/16" high, 14-3/4" wide and 13-1/4" deep. Mode is SSB or CW and power output is about 100 watts. Price new was $1,250.00 and current prices are about the same for a unit is good operating condition.
312B-5 Station Control and PTO for the KWM2-A
This unit is essentially the same as the 312B-4 but with the additional feature of a PTO which connects to the KWM2-A in order to give the operator the opportunity to work split frequency operation - similar to having the 32S-3/75S-3 combination. Original cost was $350.00 - currently similar units in good condition bring anywhere from $600 to $1,000.
30L-1 500 Watt Linear Amplifier
This is a table-top amplifier appeared in 1961 and consisted of a solid state power supply and four 811A triodes. The physical size is essentially the same as the KWM2-A with a weight of 38 pounds. Original cost new was $520.00.
30S-1 1,000 Watt Linear Amplifier
This amplifier became available in 1959 and with 80 watts of driving power will deliver up to 1,300 watts PEP output. It is a floor model and far from ortable with a weight of 160 pounds. Price when new was $1,556.00; currently, a unit in good condition will bring $2,000.00 or more.
DL-1 Dummy Load
This unit is a 100 watt resistive dummy load used while tuning up the transmitter before attaching the transmitter to the antenna.
This desk "mike" was manufactured by Turner for Collins. Frequency response is 50 to 13,000 cps. There is no push-to-talk switch on this unit. Original price was $48.00.
This desk "mike" is a dynamic microphone with a push-to-talk switch. Frequency response is 200 to 3,000 cps. Original price was $65.00