I do not want to wear out the unobtainium CW/SSB switch by going back and forth every time I use the amp. I want to pick one voltage setting and do 95% of my operation there. 73, Cathy N5WVR I do just the opposite, I switch to CW/tune each time to try to save the unobtainium on/off switch from higher inrush current... de Dick NY1E