You, sir, are simply amazing. I have had TWO of these for 25 years, and been so distracted that I have NEVER even turned them on! You got one less than 15 days back, and have written a BEAUTIFUL report (e-book) on them! Simply amazing, retired or not. I heartily commend you! At least now I know something more about the DSA 602! I retired in July and the unit is on my "bucket" list. Thank you! Respectfully, Jeff Kruth