[Elecraft] Audio Improvements on a K2

[Dave Johnson]

Hi Robert

I've done the 2nd filter mod and it makes quite a difference to the dull
sounding SSB audio. My microphone is a low cost Kenwood MC-43S and that
works just fine. The links are just to adjacent pins in the K2 front panel
and can be made with the "computer jumpers" for a real neat job.

There are "before" and "after" Spectrogram images and a comparison image of
a home brew transceiver with a 2.4 KHz filter at:
http://www.astromag.co.uk/k2/filter.html

73's Dave, G4AON
K2 #1892 K1 #1154