ge model 548 still hums

4/24/2004 8:16:29 PMsean

Hello, this radio still hums. I recapped it and it worked, but had scratchey noise problems at times. I noticed that when I wiggled the if transformer I am reffefing to in all my posts, the radio would cut in and out becuase one of the pins was touching the chassis. so I re bent the brass retaining pin and now it wont work at all. the trans is the 2nd IF. It ohm checks at 16.8 ohms. I still dont see any caps in parallel with either side of this coil, are they hidden in the plastic base? The I.F. is 3\4 square with an adjustabe slug hole in the top of it

4/24/2004 9:05:05 PMsean

can soldering too long damage these IF transformers?

:Hello, this radio still hums. I recapped it and it worked, but had scratchey noise problems at times. I noticed that when I wiggled the if transformer I am reffefing to in all my posts, the radio would cut in and out becuase one of the pins was touching the chassis. so I re bent the brass retaining pin and now it wont work at all. the trans is the 2nd IF. It ohm checks at 16.8 ohms. I still dont see any caps in parallel with either side of this coil, are they hidden in the plastic base? The I.F. is 3\4 square with an adjustabe slug hole in the top of it

4/24/2004 10:34:37 PMNorm Leal

Hi Sean

These 3/4" IF Transformers have built in caps. These caps give problems, causing a scratchy noise. They can be removed, dug out and new 100 pf caps added. The original caps are built into the base. Look closely between pins.

Bending leads on IF Transformers can break connecting wires. Once the can is removed you should be able to see any broken wire, or a built in cap may have completely shorted?

Norm

:can soldering too long damage these IF transformers?
:
::Hello, this radio still hums. I recapped it and it worked, but had scratchey noise problems at times. I noticed that when I wiggled the if transformer I am reffefing to in all my posts, the radio would cut in and out becuase one of the pins was touching the chassis. so I re bent the brass retaining pin and now it wont work at all. the trans is the 2nd IF. It ohm checks at 16.8 ohms. I still dont see any caps in parallel with either side of this coil, are they hidden in the plastic base? The I.F. is 3\4 square with an adjustabe slug hole in the top of it

4/25/2004 4:37:13 PMsean

Hello. do I have to take the transformer apart again or are these caps buried in the plastic on the outside bottom of transformer

:Hi Sean
:
: These 3/4" IF Transformers have built in caps. These caps give problems, causing a scratchy noise. They can be removed, dug out and new 100 pf caps added. The original caps are built into the base. Look closely between pins.
:
: Bending leads on IF Transformers can break connecting wires. Once the can is removed you should be able to see any broken wire, or a built in cap may have completely shorted?
:
:Norm
:
:
:
::can soldering too long damage these IF transformers?
::
:::Hello, this radio still hums. I recapped it and it worked, but had scratchey noise problems at times. I noticed that when I wiggled the if transformer I am reffefing to in all my posts, the radio would cut in and out becuase one of the pins was touching the chassis. so I re bent the brass retaining pin and now it wont work at all. the trans is the 2nd IF. It ohm checks at 16.8 ohms. I still dont see any caps in parallel with either side of this coil, are they hidden in the plastic base? The I.F. is 3\4 square with an adjustabe slug hole in the top of it

4/25/2004 5:03:22 PMNorm Leal

Hi Sean

Those caps are buried in the plastic base of IF Transformers. There should be just a couple tabs to bend and the can should slide off?

Norm

:Hello. do I have to take the transformer apart again or are these caps buried in the plastic on the outside bottom of transformer
:
:
::Hi Sean
::
:: These 3/4" IF Transformers have built in caps. These caps give problems, causing a scratchy noise. They can be removed, dug out and new 100 pf caps added. The original caps are built into the base. Look closely between pins.
::
:: Bending leads on IF Transformers can break connecting wires. Once the can is removed you should be able to see any broken wire, or a built in cap may have completely shorted?
::
::Norm
::
::
::
:::can soldering too long damage these IF transformers?
:::
::::Hello, this radio still hums. I recapped it and it worked, but had scratchey noise problems at times. I noticed that when I wiggled the if transformer I am reffefing to in all my posts, the radio would cut in and out becuase one of the pins was touching the chassis. so I re bent the brass retaining pin and now it wont work at all. the trans is the 2nd IF. It ohm checks at 16.8 ohms. I still dont see any caps in parallel with either side of this coil, are they hidden in the plastic base? The I.F. is 3\4 square with an adjustabe slug hole in the top of it