I was given a Dovetron 1000T last summer. (That is the military version with all BNC connectors.) I finally got room on my bench to check it out. I am getting tones through the level pot but no cross pulse on the LED display.
I badly need a schematic for it but cannot find one. Is there any chance a greenkeyer can help me with a pdf of the schematic
The new loop current meter on my bench helped me get my old Dovetron working. That is the one that after operating 24/7 for about a year burned out a plate-through in the loop circuit. A couple days ago I could not get more than 50 mils out of it. I finally tracked it down to my loop which measured about 1000 ohms.
I finally broke it down to a model 15 pulling magnet - 200 ohms, a 15 holding magnet - 50 ohms, my newly installed SB-1210A - 600 ohms and the loop wire - 150 ohms. Of course the big problem was the SB-1210A which has a 600 ohm wire-wound resistor and 1500 0hm pot in every channel. My channels 1, 2 and 3 are remotely powered by TU's so I shorted the resistors int those channels and made sure the pots were set to 0 ohms. Problem solved. Old Dovetron re-asssembled and ready to be re-installed.
Note to Harold: I have an NOS model 15 re-inker with a little instruction sheet. I have been looking for it for several days. If I ever find it, I will scan the instructions and post it to the group.
Tom N3CRK