Thanks for the input. I'll see if I can isolate the problem to
anything else.. Failing that, I guess I'll pull the filter off the
board and see what its insides look like. Time to start looking for a
parts set, I guess!

MR

This could be your lucky day...............I have one of those assemblies on
hand. It is a yellow core Toko transformer, with the markings MFH 51 T. If
this fills the bill, shout me down, and I will mail it out to you.

Pete

Mark Rehorst wrote in message
...
Thanks for the input. I'll see if I can isolate the problem to
anything else.. Failing that, I guess I'll pull the filter off the
board and see what its insides look like. Time to start looking for a
parts set, I guess!

MR

Thanks for all the input! I pulled the filter off the PCB so I could
bypass it with a cap and then realized the first IF transistor gets
biased via the transformer inside the filter can. I put it back on
the board and the radio came back to life! It was a bad solder joint
the whole time! I sure wish they had cleaned the flux off the boards
when they built these radios. I might have been able to spot the
problem without all this fuss...

Now where did I put that can of flux remover?????

MR

Mark Rehorst wrote:

Thanks for all the input! I pulled the filter off the PCB so I could
bypass it with a cap and then realized the first IF transistor gets
biased via the transformer inside the filter can. I put it back on
the board and the radio came back to life! It was a bad solder joint
the whole time! I sure wish they had cleaned the flux off the boards
when they built these radios. I might have been able to spot the
problem without all this fuss...

Now where did I put that can of flux remover?????

MR

Its also possible that you have a bad solder joint or broken wire
inside the part, and the removal and resoldering has made a temporary
connection inside the can. I have seen it a few times on bad IF
transformers and other parts. Just keep it in the back of your mind, in
case it quits working again.
--


Michael A. Terrell
Central Florida

Mark Rehorst wrote:

Thanks for all the input! I pulled the filter off the PCB so I could
bypass it with a cap and then realized the first IF transistor gets
biased via the transformer inside the filter can. I put it back on
the board and the radio came back to life! It was a bad solder joint
the whole time! I sure wish they had cleaned the flux off the boards
when they built these radios. I might have been able to spot the
problem without all this fuss...

Now where did I put that can of flux remover?????

MR

Its also possible that you have a bad solder joint or broken wire
inside the part, and the removal and resoldering has made a temporary
connection inside the can. I have seen it a few times on bad IF
transformers and other parts. Just keep it in the back of your mind, in
case it quits working again.
--


Michael A. Terrell
Central Florida

Thanks for all the input! I pulled the filter off the PCB so I could
bypass it with a cap and then realized the first IF transistor gets
biased via the transformer inside the filter can. I put it back on
the board and the radio came back to life! It was a bad solder joint
the whole time! I sure wish they had cleaned the flux off the boards
when they built these radios. I might have been able to spot the
problem without all this fuss...

Now where did I put that can of flux remover?????

MR

This could be your lucky day...............I have one of those assemblies on
hand. It is a yellow core Toko transformer, with the markings MFH 51 T. If
this fills the bill, shout me down, and I will mail it out to you.

Pete

Mark Rehorst wrote in message
...
Thanks for the input. I'll see if I can isolate the problem to
anything else.. Failing that, I guess I'll pull the filter off the
board and see what its insides look like. Time to start looking for a
parts set, I guess!

MR