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
Speaker Cone
Mondial
Phorum Expert
*****
Posts: 1,114
Threads: 14
Joined: Feb 2013
City: Irvington, NY
#8

11-23-2016, 08:12 AM
Morzh, the article is describing making cones for the 1920's style magnetic speakers, not the later dynamic type.

These cone speakers has no surround but were full floating, being supported mainly by the center mechanical linkage. The linkage connected to a metal vane surrounded by a high impedance coil and placed in the field of a permanent magnet.

https://www.radiolaguy.com/images/speake...sicone.jpg
Find
« Next Oldest | Next Newest »


Messages In This Thread
Speaker Cone - by Bill Bacco - 11-21-2016, 02:41 PM
RE: Speaker Cone - by Jim Koehler - 11-21-2016, 03:20 PM
RE: Speaker Cone - by morzh - 11-21-2016, 08:41 PM
RE: Speaker Cone - by Bill Bacco - 11-22-2016, 08:55 PM
RE: Speaker Cone - by KCMike - 11-22-2016, 10:15 PM
RE: Speaker Cone - by Bill Bacco - 11-22-2016, 11:02 PM
RE: Speaker Cone - by morzh - 11-22-2016, 11:26 PM
RE: Speaker Cone - by Mondial - 11-23-2016, 08:12 AM
RE: Speaker Cone - by morzh - 11-23-2016, 10:40 AM
RE: Speaker Cone - by Bill Bacco - 12-20-2016, 10:26 PM
RE: Speaker Cone - by Bill Bacco - 12-20-2016, 10:34 PM
RE: Speaker Cone - by morzh - 12-21-2016, 12:44 AM
RE: Speaker Cone - by Kenneth F. Besso Jr. - 12-21-2016, 06:22 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
Wondering if I did it backwards. If a coil was wound backwards, the oscillator would not work at all. Old school...Chas — 07:23 PM
Philco 38-7 Speaker
4-ohm speaker. Black, Green leads.tludka — 07:00 PM
Philco 42-390, code 121 speaker
#87 on the schematic.  This radio had a 8" Zenith  speaker attached to it when I got it. I do don't know the hist...Stevelog — 06:39 PM
Philco 60 Squealing
I'm pretty sure I now have the litz wire soldered. This did not make any difference. Back in April I rewound the seconda...dconant — 06:25 PM
Philco 38-7 Speaker
Just to make sure, you chose either 4 ohm into 5K or into 10K? (blk-org or blk-grn)morzh — 06:23 PM
Philco 38-7 Speaker
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 — 05:34 PM
Philco 42-390, code 121 speaker
>>A closer examination of the very small print schematic indicates that the speaker is a PM type. This shows a ...morzh — 05:18 PM
Philco 60 Squealing
Litz is typically tinned by simply rubbing it with the soldering iron tip while immersed in solder (and a bit of rosin f...morzh — 05:14 PM
Philco 6K7
The suppressor grid (if by G3 you mean the S) is usually at the Cathode potential, which in this caes is GND. I am not ...morzh — 05:10 PM
Philco 16B Parts
Thanks for the reply. Unfortunately the radio was removed before bidding was over so I didn't get a chance to bid.dconant — 04:10 PM

[-]
Who's Online
There are currently no members online.

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