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Recognize these Hammarlund HQ-129X mods?

Discussion in '"Boat Anchor" & Classic Equipment' started by NQ8J, Jun 7, 2021.

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  1. NQ8J

    NQ8J Ham Member QRZ Page

    I picked up a beautiful HQ-129X with speaker last weekend. Noticed a couple of additions to the top of the chassis and a couple of extra toggle switches on the front. The radio works but sounds like it needs some work. I noticed that one of the switches could zero beat an AM BC station while in AM mode, at 1480khz. Didn't think to try to see if there are other beats every 100kHz, but I think the second pic may be a crystal calibrator.

    Attached Files:

    Last edited: Jun 7, 2021
  2. KI4ZNV

    KI4ZNV Ham Member QRZ Page

    No clue on that first photo but the second photo is definitely a crystal calibrator... the crystal is the giveaway.

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