[Amps] 3-500ZG brands

[GGLL]

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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