Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

philco model pt-4
#5

A couple of thoughts. If your field coil is open you can do as I mentioned. The pole inside the spkr as some residual magnetism and it may work. How well it will work I'm not sure. I have heard of sticking a small rare earth (powerful) behind the fc at the back of the spkr to increase the magnetism.
The other option is the replace the spkr with a permanent magnet one. I think that this set uses a 4"x6" oval. These are not all at common. And the other trick is to be able to mount the output transformer on it's back. I'm not saying it's impossible but will take a little hunting to find a proper candidate.
GL

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
philco model pt-4 - by tonto007 - 05-08-2020, 10:18 PM
RE: philco model pt-4 - by Radioroslyn - 05-09-2020, 04:41 AM
RE: philco model pt-4 - by tonto007 - 05-09-2020, 09:43 AM
RE: philco model pt-4 - by Nathan Slingerland - 05-09-2020, 10:21 AM
RE: philco model pt-4 - by Radioroslyn - 05-09-2020, 11:04 AM
RE: philco model pt-4 - by tonto007 - 05-09-2020, 11:30 AM
RE: philco model pt-4 - by Radioroslyn - 05-09-2020, 11:37 AM
RE: philco model pt-4 - by tonto007 - 05-09-2020, 11:47 AM
RE: philco model pt-4 - by Radioroslyn - 05-09-2020, 11:54 AM
RE: philco model pt-4 - by Radioroslyn - 05-09-2020, 12:08 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Information on the Other Front Runners of the Era
Good morning, folks! I’ve got a question. We have such a wonderful resource as philcoradio.com for service manuals, gene...jrblasde — 10:51 AM
Philco Model 249 made in England
It looks like it may have a stereo amplifier, at least for the phonograph section, likely EL84s/6BQ5s, or the series str...Arran — 11:26 PM
Philco model 40-100
That was part pf what began my interest in tube battery radios, the variety of circuit designs, especially by Grimes-Pho...Arran — 02:37 PM
Studebaker/Philco AC-2687 car radio
Phill; I had a look at my Riders "Specialized" car radio books yesterday, I don't have one that covers Stud...Arran — 01:50 PM
Philco Model 249 made in England
Thanks for the information MrFixr55.   It's tube amplification and not solid state. TOMfklown — 11:27 AM
Philco Model 249 made in England
Well, I’ll be! I learned something.jrblasde — 11:03 AM
Philco Model 249 made in England
Yes, Garrard was well-regarded for its standalones.morzh — 10:48 AM
Philco 46-480 Electronic Restoration
Quite the interesting stories, sir! Somewhat reminds me of my first job out of school (not that I worked in a similar fi...jrblasde — 09:33 AM
Philco model 40-100
Arran, I restored 2 Canadian battery-crank telephones for a friend a while ago, a Northern Electric (Canadian version of...MrFixr55 — 08:04 AM
Road Trip for a Philco 46-480
Beautiful work, a 79 year old radio brought back to life. The first FM radios for me, a little iffy, had some I just cou...Jimradio — 08:01 AM

[-]
Who's Online
There are currently 2462 online users. [Complete List]
» 1 Member(s) | 2461 Guest(s)
Avatar

>