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

47-1227 Output transformer
#1

I'm working on my first radio a Philco 47-1227 that was my bosses radio that he used when he was in high school. Unfortunately, I have no idea what killed the radio but my boss tells me there was dripping wax everywhere. The output transformer 32-8274 looks like it got very hot. I know nothing about transformer terminology but on one side there are three plastic coated wires a blue one, and orange one in the center, and a white one. Between the blue and orange leads I get a reading of 126Ohms and the schematic says I should get 275ohms, between the orange and white leads I get a reading of 142 ohms while the schematic says I should get 300. On the other side of the transformer are just two wires, one going to ground with no insulation and the other wire is lacquer coated and in a loose insulation sleeve. I get a reading of 0.47 ohms between these and the schematic says I should get 0.1. Are these readings way out of spec? I'm not sure how much variation is acceptable. If this transformer is fried can new ones be obtained? I'm in the process of completely recapping this radio. Once I get it close I know someone who can do the final calibrations for me. The input transformer had been replaced and some earlier time but the same person that will do the final calibration gave me a used original replacment. Again some of the windings are off from the specs and I don't know what's allowable.
Thanks,
Keith


Messages In This Thread
47-1227 Output transformer - by keith49vj3 - 02-15-2010, 10:38 PM
Re: 47-1227 Output transformer - by Jim Berg - 02-17-2010, 02:34 PM
Re: 47-1227 Output transformer - by Ron Ramirez - 02-17-2010, 04:15 PM
Re: 47-1227 Output transformer - by keith49vj3 - 02-17-2010, 08:13 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Need to purchase some accessories for restoration of my Old Philco Radio
Hi Paulo, Welcome to the Philco Phorum. I can see why you want to find good reproduction parts. That is a bea...MrFixr55 — 11:10 PM
HiFi (Chifi) tube amp build - but my own design.
Tim, I have some bakelite sockets in my work shop that I can dig up. I believe quite a few are NOS. I will take photo...RodB — 10:03 PM
Philco 610B oscillator wiring
> The cathode as noted is wired directly to the ground side of the heater filament for that tube, not to the #17 and ...Radioroslyn — 08:12 PM
HiFi (Chifi) tube amp build - but my own design.
Tim; I noticed your post a little late, but I would take one of the junk sockets and try to break a chunk out of it wi...Arran — 08:07 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM

[-]
Who's Online
There are currently 2047 online users. [Complete List]
» 4 Member(s) | 2043 Guest(s)
AvatarAvatarAvatarAvatar

>