1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration

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

Linear Mode
Replacing a Field Coil with a PM Speaker - Please Help
bdi1976
Member
***
Posts: 82
Threads: 14
Joined: Mar 2014
City: Philadelphia, PA
#10

04-15-2014, 10:15 PM
Thanks again everyone for the helpful info. I believe I have it right now, but the speaker didn't arrive yet to test. The output transformer is a Hammond universal, which fits next to the rectifier tube or I may mount to the speaker itself. I have the 1800 Ohm resistor attached to both + for the 8uF and 4uF where the FC used to be and I upped the 4uF cap to 10uF to eliminate the potential hum issue. I really enjoyed rebuilding this first set and I am anxious to start on a 90 next. Thanks guys...I'll let you know how it goes.
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
RE: Replacing a Field Coil with a PM Speaker - Please Help - by bdi1976 - 04-15-2014, 10:15 PM



Users browsing this thread: 5 Guest(s)
[-]
Recent Posts
What should I offer?
I think you have a chance at purchasing a 48-1286, based on the cabinet hardware. Only 8700 were produced, so it is a r...GarySP — 02:28 PM
What should I offer?
I am not sure what radio it is, but seems like a 1950 AM/FM set. Or from 1948, possibly one similar to 48-1264. In any ...morzh — 12:44 PM
What should I offer?
I have an opportunity to acquire this radio-phono, but the owner wants me to make an offer. Tried searching images, but...nocusr — 12:29 PM
Atwater-Kent 84, restoration.
So, I unwound the coil; it is 700 turns of AWG40 wire. I modeled it on a couple of different calculators and I got about...morzh — 12:29 PM
Atwater-Kent 84, restoration.
Ron From the conversation, it was my impression he was a pretty old dude who is looking to place his radios in good h...morzh — 12:16 PM
Philco 49-1040
Yes, and it's surprisingly common for early TVs to be mostly or all original. My thinking is that they were retired ear...Bob Andersen — 11:59 AM
91H Code 126 Restore
Hi Nick, Usually the dashed lines connected to components means the part is a substitute in the circuit for specific ...RodB — 09:42 AM
462ron
Mike when I got to the guy’s house to pick up the set, he gave me a tour of his home and garage. Wow, his living room co...462ron — 09:10 AM
91H Code 126 Restore
I'm pretty sure that the dotted line I circled in an earlier post signifies that it is applicable to the 226 model which...RealRider — 08:05 AM
Philco 49-1040
Hello bob, that underside looks like it is all original ! Sincerely Richardradiorich — 02:07 AM

[-]
Who's Online
There are currently 2784 online users. [Complete List]
» 1 Member(s) | 2783 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration