The PHILCO Phorum
46-421 question - Printable Version

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46-421 question - brownie45 - 04-01-2015

Working on this unit & would like to know how others
have handled C-15---a .2 tubular with 8 turns of
insulated wire wrapped on it.

It is between chassis ground & circuit B-.
What is a reasonable alternative for this? It should
be replaced, as it looks to be original & is probably
leaky.
Thanks.
Jim

RE: 46-421 question - klondike98 - 04-01-2015

Hi Jim, There are several threads on these types of caps you can search out.  Chuck has a service tip on this as well. Some indicate you don't really need the little coil of wire as it was a way to suppress radio signals that are no longer a problem.  Most folks pull the old cap out of the tube, stuffing in a new cap and leaving the coil of wire in place (or replacing it after the cap is stuffed).  Here's a picture (a little out of focus) of one restuffed:
[Image: https://dl.dropboxusercontent.com/u/54621529/42-322_cap.jpg]

RE: 46-421 question - brownie45 - 04-01-2015

Thanks for the tips. Will probably re-stuff the cap.
Jim

RE: 46-421 question - Radioroslyn - 04-01-2015

Hey Jim
Long time no hear from!! It's use to block out LF beacons from getting in to the 455kc IF. Not many beacons around anymore.
Gud Lk w/it
Terry

RE: 46-421 question - brownie45 - 04-02-2015

Read through threads & Chucks advice, & it is GOOD reading
since I'd never run across one of these.

In the threads, Sparky mentions that the old foil caps seldom
go bad. I would have to differ with that--most need replaced.

Bob---did you have to "tune" the coil when you replaced the
cap in yours? Just wondering for future.

This is actually a set for the radio Grandson for a 4-H project,
so all this info is much appreciated. He's already done several
old units already.

Thanks much, guys.
Jim

RE: 46-421 question - klondike98 - 04-02-2015

Nope, no tuning of the coil required.

RE: 46-421 question - brownie45 - 04-02-2015

Terry---thanks for the greetings.
Haven't had a Philco to work on lately, so
haven't needed any help from you guys.

However, I read up on what's happening
here all the time. I always learn something.
Jim

RE: 46-421 question - Radioroslyn - 04-02-2015

We do have the other radio section if you get hung up on a non Philco set. Just post a schematic from Riders so we can see what it is.
Terry