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a different humcancelling topic..

eddododo

eddododo

Apr 7, 2010
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#1
Is there any way to have an active, switch-on magnetic circuit under the pickup?

The idea is that the pickups are single coil, passive and unaffected until the circuit is engaged. When engaged, it creates an opposite-polarity magnetic field, eliminating the 60-cycle hum of a solo'd pickup.

I will probably have an answer for myself by the morning e_e but I would be most interested and grateful of anyone's suggestions or resource tips.. I am kind of going to use some relay switch coil stuff I have as a jumping off point.


Thanks!
 
#6
and EBMM used to have an active hum-canceling circuit for their guitars, called the silent circuit.

if you popped the battery out the guitar still worked, but now had single coil hum.
 
#7
walterw said:
and EBMM used to have an active hum-canceling circuit for their guitars, called the silent circuit.

if you popped the battery out the guitar still worked, but now had single coil hum.
Click to expand...

this is more of what im talking about I think..
flip a switch, add a current, coil somethingorother magnetism and BLAM!

heh
 
#8
eddododo said:
this is more of what im talking about I think..
flip a switch, add a current, coil somethingorother magnetism and BLAM!

heh
Click to expand...

It's got nothing to do with magnetism, it's just a reverse polarity coil.

The EB system actually ran the dummy coil through a preamp and then into your regular pickup. The circuit took over for ground from the pickup. So if you pulled the battery it still worked, but the pickup was no longer hum canceling.
 
#9
eddododo said:
Is there any way to have an active, switch-on magnetic circuit under the pickup?

The idea is that the pickups are single coil, passive and unaffected until the circuit is engaged. When engaged, it creates an opposite-polarity magnetic field, eliminating the 60-cycle hum of a solo'd pickup.
Click to expand...

No, and that wouldn't work anyway. The strings interact with the magnetic field. The noise does not. As line6man explained, it's all about coils.
 
#10
SGD Lutherie said:
It's got nothing to do with magnetism, it's just a reverse polarity coil.

The EB system actually ran the dummy coil through a preamp and then into your regular pickup. The circuit took over for ground from the pickup. So if you pulled the battery it still worked, but the pickup was no longer hum canceling.
Click to expand...

Yea I tend to open my mouth first and read alll night later.. Ha

Thanks fellas for the input
 

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