[sdiy] Buzzing reverb

[harrybissell]

oooh... my bad

I missed a clue.  If the Parametric EQ works without hum, but he reverb
DOES hum... its is very likely NOT a cap in the power supply !!!  Broken
wire, or EMI.  Or it could be a bad connection at, or insdie the reverb
tank itself. They usually use RCA connectors, famous for having corrosion
etc...

H^) harry

jays at aracnet.com wrote:

> You haven't moved it next to something that has a lot of EMI have you?
>
> Reverbs are great for picking up AC hum from computer monitors and other units power supplies.
>
> Like Harry said, either bad caps or bad ground would be my guess after EMI. Usually linear power supplies aren't that bad to deal with.
>
> Jay S.
>
> Steve Begin wrote:
>
> > I have an Intersound PRV-1 Spring Reverb / Parametric EQ, and when the reve=
> > rb section is switched on, there's a really loud buzzing sound added to the=
> >  output.
> > It does this regardless of whether or not there's an input present, and the=
> >  buzz would appear to be 60Hz.
> >
> > Would this mean it's likely one of the filter caps somewhere is dead?  If s=
> > o is there anything anybody can tell me about how I should go about locatin=
> > g the offending capacitor?
> >
> > Thanks,
> > Steve=