[SOC] 528 tone

[Finn]

If you want to be in tune with the universe, you should not
use 600 or 750 Hz when listening to morse code (CW),
you should listen to 528 Hz. I know it is on the low side,
but it might make your life happier.
Here is a one hour lecture telling you why (I think, I only listened to 
a few minutes of it).

https://www.youtube.com/watch?v=cUiSMPHRrhc

73 and change your side tone to 528 Hz,
Finn WB2UWU SKCC #1708C