Oh man, does that bring back memories!!!! On Sat, Jan 26, 2013 at 3:58 PM, Bill <bmarx at bellsouth.net> wrote: > > II chased DX with the lights out late at night, and no side tone to wake > my parents. No problem, as the hum of the tubes and the purple glowwhen I > keyed provided all the side tone I need. >