RF Noise with LaVache Boost Switch

[jighead81]

I'm picking up some NPR when I engage the Boost switch on the LaVache.  Anybody else have this problem?  I had RF no matter what when I had it breadboarded, but after I boxed it up the only time I hear the radio is when I have the boost engaged.  

Any ideas?

[bigmufffuzzwizz]

If your using a power supply, have you tried putting any capacitance on the PS? Not exactly sure what value but my guess would be a box film cap like 2.2n..or maybe a ceramic cap that's a smaller value. Just giving some suggestions as I'm not to familiar with this circuit. 

[jighead81]

Thanks BMFW.  I had the same RF with a battery or power supply so I ruled that out.

I used some shielded wire on the input and output jacks and grounded one end of the shield of both wires and that took care of it.