Kenwood TS-590SG HF/6 Meter Base Transceivers TS-590SG
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Kenwood TS-590S Front panel TS590S TS-590 TS590 | eBay
Kenwood TS-590SG, Kenwood TS590SG
The cheap Chinese copies of the Kenwood TCXO boards are rubbish, I bought and installed a superb TCXO from Mark Goldberg, W7MLG. The results are fantastic, my TS-590SG is now spot on