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 speaker transformer wireing
Tubesforme
Member
***
Posts: 107
Threads: 20
Joined: Feb 2015
City: Los Angeles, CA
#3

07-15-2016, 03:46 PM
(07-14-2016, 11:44 PM)Steve Davis Wrote:  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

Thank you Steve. that is exactly what I was looking for. I had been told just to use the transformer that was on the 20 speaker and use only 1/2 of the primary and it would work. That I doubted. The impedance would be way off. I was able to get the correct transformer, but wasn't sure about the proper wiring. Once again I am indebted to you. Thank you.

Michael (Tubesforme)
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
RE: Model 70 speaker transformer wireing - by Tubesforme - 07-15-2016, 03:46 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
RCA T62 is playing.....
Beautiful set.morzh — 09:07 PM
An attempt to remove the Field Coil from a G speaker
Well....here it is. The green stuff. Unfortunately, probably penetrates deep. I opened the top layer and saw that: ...morzh — 08:58 PM
Philco 91 Restore Code ??
:clap: :clap: :clap: :clap: Really nice workmanship!!! Top of the chassis looks great. Sorry about the long winded e...MrFixr55 — 08:09 PM
Philco 40-120C Restoration
Thank you for your reply. I will check voltages on the other tubes, look at resistor 23 and cap 25, etc. If all else fai...bluecap — 07:58 PM
RCA T62 is playing.....
Nice looking set great save. DavidDavid — 07:48 PM
Philco 89 indicator light.
Hello Jim, I have done several 89s. The trick is to move the drum in or out on it's shaft. You will need to loosen a set...dconant — 07:36 PM
An attempt to remove the Field Coil from a G speaker
MrFixr Yes, it is my plan to go with 45rpm spider if I go that far. No, the pole was not left-handed as I unscrewed ...morzh — 07:14 PM
Philco 40-120C Restoration
Change the tube. Check the tube's bias network. Are any other tubes experience the drop or just this?` Is resistor 23 OK...morzh — 07:09 PM
Philco 89 indicator light.
I forgot how the pointer is formed: could you show the way it is formed and how you tried to change it?morzh — 07:01 PM
An attempt to remove the Field Coil from a G speaker
Was that pole piece left handed ? Since the metal "spider" is toast, wonder if you can either get the "4...MrFixr55 — 06:54 PM

[-]
Who's Online
There are currently 4906 online users. [Complete List]
» 2 Member(s) | 4904 Guest(s)
AvatarAvatar

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