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
Model 70 Detector Coil/Transformer
jjfritz5528
Junior Member
**
Posts: 42
Threads: 12
Joined: Mar 2023
City: Lancaster State, Province, Country: PA
#4

09-11-2023, 01:48 PM
Just got back to preparing for the winding of the Primary for the 1st Detector Coil for the Model 70, P/N 03083. The information from the website in the Coil Winding Section is for the RF Coil, so it's NOT the same for the Detector. As close as I can tell, the Primary Detector Coil is #40AWG (~3 mil, as close as my caliper reads). Could be #41AWG, but that seems like an odd value. SO I also expect the 69 Turns to be incorrect also. I haven't unwound it yet to verify, but it looks like its more turns.
I can't work backwards using the resistance to confirm the gauge, since there are obviously breaks within the existing windings. And there is no data that I found on the resistance of the Primary Winding on this transformer.
Does anyone have information to confirm the correct wire size for the Primary coil, before I order the wire? OR am I splitting hairs and just go with the #40AWG?
Thanks in advance!
John
Thanks
John N3MUN
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
RE: Model 70 Detector Coil/Transformer - by Chas - 08-15-2023, 08:51 PM
RE: Model 70 Detector Coil/Transformer - by jjfritz5528 - 09-11-2023, 01:48 PM
RE: Model 70 Detector Coil/Transformer - by Chas - 09-11-2023, 03:07 PM
RE: Model 70 Detector Coil/Transformer - by morzh - 11-17-2023, 09:45 PM
RE: Model 70 Detector Coil/Transformer - by morzh - 11-19-2023, 03:51 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Model 80 Antenna Issue?
Thanks Gary and Rod.  I also found an article in the Philco Repair Bench under Service Hints and Tips, about installi...Hamilton — 12:32 PM
Model 80 Antenna Issue?
Hello Hamilton, here is a little information found in our Philco Radio Library at the bottom of the Home page. Hope it ...GarySP — 11:28 AM
Model 80 Antenna Issue?
I did as you suggested and touching the middle of the volume control did nothing so the coil has to be rewound. Any idea...Hamilton — 10:19 AM
1949 Motorola 5A9M
This would be the second portable in the "other radios" forum where I have a similar one in my collection. I h...Arran — 12:41 AM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hi PittsburgTost. The record changer looks like a Garrard or BSR (Likely Garrard). The spindles just pull out and pu...MrFixr55 — 11:57 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hello PittsburghToast , Welcome aboard and it looks like gary may have something for you ! now if I dig through my se...radiorich — 11:35 PM
Model 80 Antenna Issue?
You are kind of on the right path. You can touch the grid cap of the Detector/Oscillator 36 tube. I'm expecting a respon...RodB — 08:48 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Welcome to the Phorum, PittsburghToast!  I found an old thread that my interest you regarding the quality and worth of P...GarySP — 08:48 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Welcome to the Phorum! :wave: We do not have anything on that unit in our digital library. There is a Sam's Photof...klondike98 — 08:47 PM
Model 80 Antenna Issue?
I’ve replaced all the caps and resistors and the radio is working but minimal volume unless I put my hand near the re...Hamilton — 08:24 PM

[-]
Who's Online
There are currently 950 online users. [Complete List]
» 1 Member(s) | 949 Guest(s)
Avatar

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