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
Retrofitting speaker for Philco 84
462ron
Phorum Expert
*****
Posts: 851
Threads: 50
Joined: Feb 2013
City: Shenandoah, State, Province, Country: Pennsylvania
#8

09-29-2022, 08:29 AM
I’m no engineer so with that said, I’m thinking if an 8 ohm spkr reflects back to the primary as 7K with its current transformer turns ratio, then a 1 ohm spkr would reflect back as 875 ohms or 1/8 the 7K value unless I’m missing something! Icon_crazy

Ron
Bendix 0626.      RCA 8BX5.   RCA T64
Philco 41-250.    Philco49-500
GE 201.             Philco 39-25
Motorola 61X13. Philco 46-42        Crosley 52TQ
Philco 37-116.    Philco 70
AK 35                Philco 46-350
Philco 620B.       Zenith Transoceanic B-600
Philco 60B.         Majestic 50
Philco 52-944.    AK 84
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
Retrofitting speaker for Philco 84 - by Ctkid - 09-25-2022, 06:39 PM
RE: Retrofitting speaker for Philco 84 - by Ctkid - 09-26-2022, 09:57 PM
462ron - by 462ron - 09-29-2022, 08:29 AM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco 46-480 Electronic Restoration
Well, rats. The folks at Moyer have already confirmed that they do not have any of this model of IF transformer in stock...jrblasde — 08:00 PM
What should I offer?
I am curious, as I have seen those names before. Where did the nicknames of Sheraton and Hepplewhite come from?jrblasde — 05:26 PM
What should I offer?
The only ones I am getting from the 1940-s, if ever, are the 1948 Sheraton or Hepplewhite. Not interested in the rest.morzh — 05:22 PM
6TPZ and 5TPO Radio Help
See above. Try to see about the shorted caps etc, remove the transistors, and do not populate them until you rectify t...morzh — 05:04 PM
What should I offer?
I swore one console was enough, but now I see a nice looking 47-1227 down in Muskogee!  :lol: I am trying to resist the ...jrblasde — 05:03 PM
What should I offer?
The consensus is $50, which is what I was thinking. I've sworn off repairing phonos , but what's one more? Thanks for ...nocusr — 04:56 PM
6TPZ and 5TPO Radio Help
Alrighty. I'm back. I'm not ready to give up. Suggestions on where to start?R3Sons — 04:54 PM
Atwater-Kent 84, restoration.
Well, in the declining years folks sometimes tend to use what disposable income they have left to pamper themselves to t...morzh — 04:51 PM
462ron
Yeah Mike I figured him to be late 70s. Looked like he lived alone as thete was only seating for one person in the room ...462ron — 04:14 PM
What should I offer?
I think you have a chance at purchasing a 48-1286, based on the cabinet hardware. Only 8700 were produced, so it is a r...GarySP — 02:28 PM

[-]
Who's Online
There are currently 2258 online users. [Complete List]
» 3 Member(s) | 2255 Guest(s)
AvatarAvatarAvatar

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