Clay, the one which does not light up filament could only have its
connecting wire desoldered from the pin (common failure with poorly
cooled systems). It deserves to take a look if you didn't yet.
If so, resolder it taking out the old solder and apply new Sn-Ag solder.
Best regards
Guillermo - LU8EYW.
Clay W7CE escribió:
I've just acquired a Kenwood TL-922A which needs a new pair of finals (one
of the filaments doesn't light up). Does anyone have experience using the
Taylor or RF Parts branded 3-500ZG tubes in this amp? Does the cathode bias
need to be changed when switching to the 3-500ZG? Any recommendations will
be appreciated.
Thanks,
Clay W7CE
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