Yesterday, 04:10 PM
There seems to be something wrong with that schematic - in the Line Adjust position that 1k potentiometer should be in series with the meter. See the schematics for the similar 589 and 589-A testers.
Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA
https://plymouthcolony.net/starcity/radios/