If you are concerned about the tubes while you are testing, just take
them out. As a bonus, there will be no load on the filament
transformer and you will not have to de solder the wires to see if it
was causing the buzzing.
At 07:31 AM 27/10/2009, Szegedy wrote:
>I have TL-922,my linear is buzzing but only in SSB MODE,in CW MODE
>is ok.I checked the screws on the transformer,it is ok.
>The buzzing noise comes from left side of amplifier,in STBY (when no
>drive) is also buzzing,but linear works perfectly.
>1.How can I test that my filament transformer causes the buzzing or
> Is it good solution if I solder down the 2 yellow wires which go
> from filament transformer 11V output to the tubes?
> Because after soldering the filament transformer output will
> be free,no 14A current and without this big 14A maybe the
> transformer will no buzzing,I could decide this transformer causes
> the buzzing noise.If the buzzing don t stop,something else cause
> the buzzing,not the transformer,is itv
>2.What will happen with the tubes if the tube don get 11V heater
>voltage and linear is POWER on?Can I damage the tube or not?Because
>anod Voltage is on the tube,but without 11V heating voltage?Is it
>problem for the 3-500Z tube?
>3.Do you have a better or other idea?
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