-40%

Collins KWM-2A SSB Transceiver w/PM-2 PSU, Crystals, and Manuals

$ 226.51

Availability: 100 in stock
  • Type: Ham Radio Transceiver
  • Restocking Fee: No
  • Item must be returned within: 30 Days
  • Frequency Range: 80m-40m-20m-15m-10m
  • Band: CW, SSB
  • All returns accepted: Returns Accepted
  • Model: KWM-2A
  • Refund will be given as: Money Back
  • Brand: Collins
  • Band Type: HF, Except 160m
  • Return shipping will be paid by: Buyer
  • Condition: Very good physical condition, known history, removed from service working but untested.

    Description

    Collins KWM-2A SSB Transceiver w/PM-2 PSU, Crystals, and Manuals
    The photographs are the most accurate description I can offer to prospective bidders.
    Although I possess a general level of technical knowledge, including RF devices, I am not completely familiar with this equipment. Handwritten notes in the manuals do not clearly establish the age of the unit, but it appears to have been manufactured between 1966 and 1971.
    The Serial Number is: 18981.
    It has not been comprehensively tested so it is sold “as-is” for parts or repair. Returns are accepted; however, shipping costs are not refundable. If you are not familiar with high voltage / RF apparatus, please do not bid.
    Shipping is offered to continental United States locations only, AK and HI, request a quote; local pick-up is encouraged. The background information that follows below may be helpful.
    The original owner was an avid amateur radio operator throughout his lifetime.
    In the late 1980’s or early 1990’s, he “upgraded” to a Kenwood rig and either sold or gifted this to a colleague who was also an avid radio amateur. Because the second owners’ primary interest was VHF-FM [6m, 2m, 70cm], it is unlikely the Collins received much use. When I acquired the transceiver approximately two years ago there was no power supply present with it. I intended to pursue an amateur radio license, so I purchased a PM-2 power supply with the idea of restoring this unit and getting it on-air.
    When I purchased the PM-2, it was said to be fully tested and functional; however, I would have replaced the line cord regardless to be safe. The upper crystal board contains only a single crystal; however, the lower board appears to be fully populated with all 14 crystal sockets filled. The internal 100 kHz calibrator crystal is present and included.
    I have not disassembled the cabinet to investigate individual crystal frequencies.
    If necessary, please email me and I will [attempt to] do so and add a photo.
    There is one known modification, the addition of a DX Engineering LC-1-KWM speech processor module with an associated array of switches. Further, the Exciter Tuning adjustment consists of two concentric knobs.
    The inner most knob raises and lowers four elements of individual slug-tuned coils as I believe it should. The outer knob does not engage and turns freely; this does not appear normal to me and I did not investigate further.
    All other controls operate smoothly and correctly.
    Here are additional details from the Universal Radio Web-Site particular to the “A” Version:
    “The Collins KWM-2A is an extended frequency version of the KWM-2 for [sic] “MARS” [Military Affiliates Radio Service] applications. It has an additional crystal board permitting the addition of 14 crystals to cover frequencies outside the amateur bands. The KWM-2A has a front panel switch and indicator allowing instant switching between the two crystal boards.” (Note: The person I acquired this from never mentioned handling MARS traffic.)
    What is Included
    1.
    Collins KWM-2A Transceiver.
    2.
    Collins PM-2 Power Supply, w/Line cord.
    3.
    DX Engineering LC-1-KWM Speech Processor Unit.
    4.
    Two manuals, one dated 1966, the other 1971.
    5.
    16 Crystals Total: (1) resident on main board, (14) on lower board, (1) 100KHz CAL.
    6.
    Two lower feet.
    Rear feet were apparently removed to angle the console towards the operator.
    7.
    NO HARWARE IS INCLUDED TO SECURE THE PSU TO THE MAIN TRANSCEIVER.
    Please browse my other auction this week for related technology.
    Thank you for looking, email me with questions.