10-27-2012, 03:40 PM
I have no sch for your model. Anyway.
To add to the above, poor reception on SW may sometimes stem from the fact that the first RF amp stage does nothing and you receive good AM stations using your second stage (detector-oscilaltor, for instrance) as an antenna. If this is the case, if you pull the first tube you will see that the reception did not change and the radio still plays.
This may show to the open RF output transformer for this first stage.
So, if you don't see any shorts etc, try to see the integrity of that coil.
To add to the above, poor reception on SW may sometimes stem from the fact that the first RF amp stage does nothing and you receive good AM stations using your second stage (detector-oscilaltor, for instrance) as an antenna. If this is the case, if you pull the first tube you will see that the reception did not change and the radio still plays.
This may show to the open RF output transformer for this first stage.
So, if you don't see any shorts etc, try to see the integrity of that coil.
