The old tube radios used a mechanical vibrator that hummed - and if the caps dried out, the speaker hummed, too. Usually around 50 - 70 Hz.
Chuck Kuecker On 6/28/2011 12:33 PM, No Quarter wrote: > Ahem, I need to step up here. Courtney made the joke, I stated the filter > capacitors. I need my ego stoked. LOL! > > In all seriousness though, why would there be humming on a DC system? Would > this be alternator whine? What makes it hum when you aren't converting AC > to DC then? > > NQ > > ----- Original Message ----- > From: "Nicholas Stokes"<[email protected]> > To: "Air-Cooled Volkswagen Discussion List"<[email protected]> > Sent: Tuesday, June 28, 2011 6:06 AM > Subject: Re: [vintagvw] Big M > > >> You beat me to it Courtney! >> >> Sounds like filter capacitors. >> >> Nick >> Sent from my iPhone >> >> On Jun 27, 2011, at 10:40 PM, Courtney Hook<[email protected]> wrote: >> >>> It doesn't know the words??? ;-) >>> Courtney >>> >>> >>> ----- Original Message ----- >>> From:<[email protected]> >>> To:<[email protected]> >>> Sent: Monday, June 27, 2011 7:34 PM >>> Subject: [vintagvw] Big M >>> >>> >>>> Hi Nick, >>>> >>>> I have a Big M in a 57 Bug, that only hums very loudly You have a >>>> prognosis? >>>> >>>> Ray >>> _______________________________________________ >>> vintagvw site list >>> [email protected] >>> http://lists.sjsu.edu/mailman/listinfo/vintagvw >> _______________________________________________ >> vintagvw site list >> [email protected] >> http://lists.sjsu.edu/mailman/listinfo/vintagvw > _______________________________________________ > vintagvw site list > [email protected] > http://lists.sjsu.edu/mailman/listinfo/vintagvw > _______________________________________________ vintagvw site list [email protected] http://lists.sjsu.edu/mailman/listinfo/vintagvw
