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
KENWOOD TS-480 MODULO OSC TCXO cristallo ad alta stabilità compatibile con SO-3 EUR 20,74 - PicClick IT
kenwood SO-3 SO3 tcxo hi-stability crystal controlled oscillator Unit W/ Box New | eBay
Kenwood SO 3 TCXO Oscillatore locale
TS-590S Kenwood stabilité CRYSTAL Kristall OSC Modul compatible SO-3 TCXO15.6mhz PME, artisans et agriculteurs Équipement électrique et d'essai
301: How to install and adjust the SO-3 TCXO in the Kenwood TS-590 - YouTube
KENWOOD - SO-3 - HIGH STABILITY OSCILLATOR - HardSoft Products
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