I have a B.F. Goodrich, Model R643-W,"Mantola" radio which I am trying to bring back to life. It is tuned by two slug tuned coils and the slugs appear to be stuck inside the coil form. Does anyone have a method for loosening these slugs? Otherwise, the radio is junk.
Thanking all in advance for any suggestions,
Dick

Have you tried to turn them using a proper PLASTIC RF tuning tool?

If so, then I would recommend trying to use a tuner cleaner type spray on the inside of them. It will clean out dirt and debris and will dry up before any damage occurs.

Lou
:I have a B.F. Goodrich, Model R643-W,"Mantola" radio which I am trying to bring back to life. It is tuned by two slug tuned coils and the slugs appear to be stuck inside the coil form. Does anyone have a method for loosening these slugs? Otherwise, the radio is junk.
:Thanking all in advance for any suggestions,
:Dick

If all else fails, don't junk the radio. Leave the stuck slugs where they are, and disconnect the IF caps and substitute a trimmer cap of suitable value.
Doug

:Have you tried to turn them using a proper PLASTIC RF tuning tool?
:
:If so, then I would recommend trying to use a tuner cleaner type spray on the inside of them. It will clean out dirt and debris and will dry up before any damage occurs.
:
:Lou
::I have a B.F. Goodrich, Model R643-W,"Mantola" radio which I am trying to bring back to life. It is tuned by two slug tuned coils and the slugs appear to be stuck inside the coil form. Does anyone have a method for loosening these slugs? Otherwise, the radio is junk.
::Thanking all in advance for any suggestions,
::Dick

:If all else fails, don't junk the radio. Leave the stuck slugs where they are, and disconnect the IF caps and substitute a trimmer cap of suitable value.
:Doug
:
::Have you tried to turn them using a proper PLASTIC RF tuning tool?
::
::If so, then I would recommend trying to use a tuner cleaner type spray on the inside of them. It will clean out dirt and debris and will dry up before any damage occurs.
::
::Lou
:::I have a B.F. Goodrich, Model R643-W,"Mantola" radio which I am trying to bring back to life. It is tuned by two slug tuned coils and the slugs appear to be stuck inside the coil form. Does anyone have a method for loosening these slugs? Otherwise, the radio is junk.
:::Thanking all in advance for any suggestions,
:::Dick

Thanks for your input Doug and Lou.
These coils are the main tuning mechanism for this set. The dial cord moves a slide up and down to tune the radio over the broadcast band. This slide moves the slugs by means of small wires, (1/16" or less) I can't get to them without removing the entire RF section. The slugs have no way to adjust them.

Oh, OK - I was thinking they were IF xfmrs.
Doug

:Thanks for your input Doug and Lou.
:These coils are the main tuning mechanism for this set. The dial cord moves a slide up and down to tune the radio over the broadcast band. This slide moves the slugs by means of small wires, (1/16" or less) I can't get to them without removing the entire RF section. The slugs have no way to adjust them.