I have a knight 600A tube tester and manuals along with other information on the tester.this is a rare tester these days! I got it in a fellow hams estate sale 15 years ago put it in the corner of the shack and now it's in the way. I'm asking $225.oo OBO shipped from 72023 including postal insurance and continental us shipping. payment by personal check or us money order. sold as is Was working when I got it and has been in corner of climate controlled shack ever since.
You can reach me by email at
shadow275050@yahoo.com
or call me Jesse
KF5EQB
501-941-5384
73ssss