[GreenKeys] Mainline TTL-2 (Was Dovetron versus HAL ST9000 )

[Roy Norris]

Jack,  you brought back memories.  I built my TTL-2 when I was 18 as well 
and was in college at Auburn University.  I had been struggling with a 
WA2PAT demodulator and was impressed with Irv's series of articles in 
QST.  The TTL/2 was the most ambitious homebrew project I had ever 
undertaken.  It was a supper demodulator and I dearly wish I had never sold it.

I really miss those days.

I saw that Irv Hoff is now a silent key.  When did that happen?  I knew Irv 
well but had lost track of him over the years.  How did he pass ??  He was 
one of the biggest contributors to the RRTY hobby and a great guy.

Roy, K4EEG