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Might try looping lead (leads?) to amp thru a ferrite, or get the split clamp on ones, close to were it goes in the amp?

Wrap up in a coil any extra length of the cable.? Makes a common mode choke.

As Sarma says, maybe a 100 - 1000 pF bypass on each input?

73's

Mike, WA6ISP

i imagine that Prabha jee

?Pleace a 01.1uF capacitor on ech channel, at the middle pin of Violume control to ground. It would byepass the RF induced in the speaker connecting cable.

? Aduio would disappear.

All the best

?sarma

?vu3zmv

Regards
MVS Sarma
?

On Wed, Feb 7, 2018 at 7:00 PM, Praba Karan <vu3dxr@...> wrote:

external amplispeaker...

i heard audio even volume down bottom.

Virus-free.

On Wed, Feb 7, 2018 at 6:18 PM, Mvs Sarma <mvssarma@...> wrote:

Is it external speaker or external amplispeaker?

Regards
MVS Sarma
?

On Wed, Feb 7, 2018 at 5:05 PM, Praba Karan <vu3dxr@...> wrote:

This issue is from microbitx

--

D.Prabakaran?

VU3DXR

-- 
Mike Hagen, WA6ISP
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