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

Philco 70 detector coil
#1

I'm in need of a detector coil for my 70. The schematic calls it first detector transformer. Philco part number 03083. Can anybody point me in the right direction. Thanks!!
#2

I think you may have a hard time finding one of those, unless you can find someone parting out a 70. And if you did find one, it would likely be open or fail very soon. This is a common problem. Usually though, it is the primary that is open due to corrosion and resulting in no plate voltage to the #24 RF tube. This coil can be rewound with some dexterity. See the information on this page. http://www.philcorepairbench.com/tips/svctip36.htm

If you decide not to rewind the coil, I think Ron still does these. See this page. http://www.philcoradio.com/rre/rewind.htm

Good luck with it.

Regards,

Ed
#3

Thanks for the help. I located one at http://www.oldradioparts.com
#4

yesterdaysradios Wrote:Thanks for the help. I located one at http://www.oldradioparts.com

After a few months weeks or days, it may go bad as well. These coil are notorious for corrosion. You'd be better served rewinding it, or having Ron rewind it. The fee is small, and you get piece of mind of not having to work on it twice.

-Brian
If you collect or are interested in antique telephones, please visit Classic Rotary Phones
http://www.classicrotaryphones.com/forum/index.php
#5

I'll probably get Ron to rewind the old one. Then I'll have one on standby.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
37-690 Bass Choke Replacement
Yeah, I know, Mouser and Digikey don't have "big iron" components. For some reason Philco was messing with the...Radiodial — 04:25 PM
37-690 Bass Choke Replacement
Yes, I just had to deal with that while repairing the 37-604 Philco. Exactly that value choke was gone. And the current ...morzh — 03:52 PM
37-690 Bass Choke Replacement
Ah, now where to find one. I've into this before on smaller sets, I now recall. Hammond makes one that is only rated...Radiodial — 03:27 PM
Philco 38-7 Speaker
Ask the admins to put them together. As for the renaming, while inside the thread, you simply press "New reply&quo...morzh — 02:23 PM
37-690 Bass Choke Replacement
This is the parts catalog. 32-7528 choke is 65H, 10mA, 2,250 Ohm inductance. Find a suitable one.morzh — 02:18 PM
37-690 Bass Choke Replacement
While troubleshooting the no bass amplification issue, I think I found the culprit. The choke #104 is reading 164K ohms....Radiodial — 01:42 PM
Philco 60 Squealing
Your IF transformers are tuned to the resonant frequency they were designed for. When you observe the bell curve they di...RodB — 01:35 PM
identify very thin wire for replacement on 37-640
Thanks so much for your help!  I really could not have gotten this far without the kindness of you and other members.  T...georgetownjohn — 11:50 AM
Philco 38-7 Oscillation
Will do, thank you.tludka — 10:26 AM
Philco 38-7 Oscillation
As to your oscillation issue I would align the IF transformers. That may solve the problem. You also would want to check...Radioroslyn — 10:22 AM

[-]
Who's Online
There are currently 2519 online users. [Complete List]
» 2 Member(s) | 2517 Guest(s)
AvatarAvatar

>