I was looking through the surviving log books my dad kept (he was W5JHJ, SK 2007) and came across some Anciente Entries made while I was in the Olde OU ARC (maybe the president?)  my first year at OU (I transferred from the Univ. of Tulsa ans an Engineering Physics major to study meteorology. He lived in Tulsa and we had some QSOs while I was using the club gear after we repaired it -- it was a Heathkit HW-101 transceiver; I was using the club's call, W5TC. The station was set up in the top floor of the Carson Engineering Center and I have no idea what the antenna was -- likely a dipole strung up on the roof. There was a flurry of QSOs on 80 m CW, all on 3575 kHz.

   Date              Time start          RST Signal  

                          and end            report

13 Oct 1976   2000-2100 CST   599
15 Oct 1976   2000-2030 CST   479
18 Oct 1976   2000-2100 CST   579
20 Oct 1976   2030-2115 CST   599
22 Oct 1976   2005-2050 CST   599
05 Nov 1976  1930-2000 CST   599

We apparently tried on two other occasions, 25 Oct and 27 Oct, but signals were not usable. 

Why not phone (SSB), you ask? Because my dad had only AM capability at the time -- he didn't have an SSB-capable transmitter. As an aside, the very transmitter and receiver he used is sitting on my operating desk and in perfect working order.