09-01-2021, 07:57 PM
The resistance from pin 1 to the +side of 46 reads 0 ohms, continuity. From the + side of 45 it's Infinity ie no continuity. From - side of 45 to chassis is 268 ohms. Regarding the wiring when I replaced the caps I followed the existing wiring. I notice now on the schematic that the plus from 45 should connect to tube 42 directly as well as a 70 K resistor. These wires are not there as noted on the attachment. I also noted there were several versions of the model 60. The one I have is the 60 B based on the cabinet face. Attached is the new schemo for 60 B from the Radio Museum (Its A pdf so you need to open it ) which seems to more closely match what is there but again these wires are missing. I would think the newer schemo is more accurate? Regarding tube 80 its base was loose so I purchased some NOS for that tube as well as all the others. I have a tube tester Sencore TC 136 but it does not have the sockets for these types of tubes .
Thanks
Thanks