[Hammarlund] Hummmmmm

[StephenTetorka at cs.com]

Checked the voltages on the power supply filter caps...got what seemed to be 'appropriate' voltages....leaking?...can't say.

I expect to see around 500K ohms on a VTVM....

Could easily patch new ones in...

Darn thing is...that hum is so LOUD...with the volume down!!!...never heard anything like it...

Guess if it smells like a duck..........


k8wbl at wb8nut.com wrote:

>Absolutely agree, I have several Hammarlunds and others, bad filter caps
>will give you a really bad hum.... Tim
>
>>
>
>
>Bad (leaky) filter capacitor... prime suspect and/or perhaps a coupling
>> capacitor.  I assume it has the original "Paper Tiger" capacitors inside
>> and
>> the original filter cap ?
>>
>> Mike, W9WIS
>>
>> _______________________________________________
>> List Administrator: Duane Fischer W8DBF
>> ** For Assistance: dfischer at usol.com **
>> ----
>> http://mailman.qth.net/mailman/listinfo/hammarlund
>>
>
>