1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
Model 70 speaker transformer wireing
Steve Davis
Phorum Expert
*****
Posts: 1,402
Threads: 70
Joined: Oct 2007
City: Linn Creek, MO
#2

07-14-2016, 11:44 PM
Take a look here:  http://www.philcoradio.com/phorum/showth...?tid=14991   Scroll down a ways and you will see speaker wiring diagrams, the upper one would be right for your 70. Since the 70 speaker does not have a hum bucking coil, the polarity of the field coil doesn't matter.

Steve
M R Radios   C M Tubes
Find
« Next Oldest | Next Newest »


Messages In This Thread
RE: Model 70 speaker transformer wireing - by Steve Davis - 07-14-2016, 11:44 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
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
Philco 38-7 Speaker
Thank you, I will check this out, I do have some shields I can place around the specific tubes. I searched the four que...tludka — 10:18 AM
Philco 38-7 Speaker
Also, check if any wires going to Grid Caps of the tubes that are supposed to be INSIDE of their respective shields (if ...morzh — 09:54 AM
Philco 38-7 Oscillation
Usually in this forum, when we discuss a radio, we do not multiply threads. You already have a thread on this. If you wa...morzh — 09:27 AM
identify very thin wire for replacement on 37-640
You can possibly use a heatshrink tubing. If you decide to replace the wire, anything gauge 24, 300V rated will do (it ...morzh — 09:25 AM
identify very thin wire for replacement on 37-640
Happy Thanksgiving,  I have attche a photo of a very thin wire with black plastic-looking insulation(some of it has com...georgetownjohn — 09:14 AM
Philco 60 Squealing
I got my signal tracer out to see if I could tell at what stage the squeal was coming from. It is present on the plate o...dconant — 09:07 AM
Philco 16B Parts
The 16B's in the tombstone cabinet sport a 10 1/2" spkr vs the older cathedral sets which uses an 8". The p/p ...Radioroslyn — 12:58 AM
Philco 38-7 Oscillation
I have let this one sit because of other duties. Now I am back, and I have a couple of questions. I hooked up a Hammond ...tludka — 11:16 PM
Philco 38-7 Speaker
I know that when I first started working on this radio, I did not even have a speaker. Once I finally found one it was n...tludka — 11:00 PM

[-]
Who's Online
There are currently 2142 online users. [Complete List]
» 3 Member(s) | 2139 Guest(s)
AvatarAvatarAvatar

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