01-10-2017, 12:27 PM
Yes, that is correct. The B+ 180V from R4 is fed to the three coils L10, L15, and L12. You should have 180 V on both ends of each coil.
The selector switch connects one end of each coil to pin 6 of the 6A8. Since the short wave band works you know that the 180V is getting to the coils from R4. The problem must be the switch or some of the coils are open and not passing the 180V to the 6A8 pin 6.
The selector switch connects one end of each coil to pin 6 of the 6A8. Since the short wave band works you know that the 180V is getting to the coils from R4. The problem must be the switch or some of the coils are open and not passing the 180V to the 6A8 pin 6.
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