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

Philco 70 Cathedral Speaker
#42

(12-27-2014, 08:30 PM)462ron Wrote:  Hi all, I have a question concerning the method used in winding a coil. Say you start on the left side of a coil form and proceed to the right. Once you get to the right side do you (A)..keep winding the second layer from the side you ended the first layer, the  right side in this example, and move left or do you (B)..end the first layer on the right and then immediately return to the left side and start the second layer and continue moving right again? Sorry if this sounds confusing but I wonder if this affects the inductance at all? Thanks

Ron

Hi;
  No you work your way back and forth across the bobbin, left to right, then right to left, other then the leads which are buried under the wrapping. Field coils, unlike RF and oscillator coils, are not that fussy about how they are wound, as long as the wire gauge is think enough and the coil has enough turns to be close enough in terms of inductance, the object here is to produce a magnetic filed, and block the 120 cycle AC ripple.
Regards
Arran


Messages In This Thread
Philco 70 Cathedral Speaker - by Ron Ramirez - 11-27-2014, 08:07 AM
RE: Philco 70 Cathedral Speaker - by KCMike - 11-27-2014, 10:46 AM
RE: Philco 70 Cathedral Speaker - by morzh - 11-27-2014, 12:50 PM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 11-27-2014, 02:44 PM
RE: Philco 70 Cathedral Speaker - by Ron Ramirez - 11-27-2014, 05:15 PM
RE: Philco 70 Cathedral Speaker - by Arran - 11-28-2014, 01:01 AM
RE: Philco 70 Cathedral Speaker - by morzh - 11-28-2014, 12:37 PM
RE: Philco 70 Cathedral Speaker - by Arran - 11-29-2014, 04:01 AM
RE: Philco 70 Cathedral Speaker - by klondike98 - 11-29-2014, 11:13 AM
RE: Philco 70 Cathedral Speaker - by Ron Ramirez - 11-29-2014, 11:30 AM
RE: Philco 70 Cathedral Speaker - by morzh - 11-29-2014, 11:56 AM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-04-2014, 11:11 PM
RE: Philco 70 Cathedral Speaker - by Warren - 12-04-2014, 11:23 PM
RE: Philco 70 Cathedral Speaker - by morzh - 12-04-2014, 11:41 PM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-05-2014, 12:01 AM
RE: Philco 70 Cathedral Speaker - by morzh - 12-05-2014, 04:09 PM
RE: Philco 70 Cathedral Speaker - by radiohenry - 12-05-2014, 06:06 PM
RE: Philco 70 Cathedral Speaker - by morzh - 12-05-2014, 06:31 PM
RE: Philco 70 Cathedral Speaker - by radiohenry - 12-05-2014, 07:00 PM
RE: Philco 70 Cathedral Speaker - by KCMike - 12-05-2014, 06:31 PM
RE: Philco 70 Cathedral Speaker - by morzh - 12-05-2014, 07:12 PM
RE: Philco 70 Cathedral Speaker - by Arran - 12-09-2014, 01:24 AM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-05-2014, 11:05 PM
RE: Philco 70 Cathedral Speaker - by Arran - 12-09-2014, 01:36 AM
RE: Philco 70 Cathedral Speaker - by morzh - 12-05-2014, 11:28 PM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-05-2014, 11:51 PM
RE: Philco 70 Cathedral Speaker - by KCMike - 12-06-2014, 04:41 PM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-07-2014, 02:36 AM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-08-2014, 09:24 PM
RE: Philco 70 Cathedral Speaker - by morzh - 12-08-2014, 09:30 PM
RE: Philco 70 Cathedral Speaker - by Ron Ramirez - 12-08-2014, 10:01 PM
RE: Philco 70 Cathedral Speaker - by morzh - 12-09-2014, 10:42 AM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-09-2014, 12:44 PM
RE: Philco 70 Cathedral Speaker - by morzh - 12-09-2014, 03:30 PM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-27-2014, 02:26 AM
RE: Philco 70 Cathedral Speaker - by morzh - 12-27-2014, 01:24 PM
RE: Philco 70 Cathedral Speaker - by Ron Ramirez - 12-27-2014, 07:09 PM
RE: Philco 70 Cathedral Speaker - by 462ron - 12-27-2014, 08:30 PM
RE: Philco 70 Cathedral Speaker - by Arran - 12-28-2014, 10:12 PM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-27-2014, 09:18 PM
RE: Philco 70 Cathedral Speaker - by 462ron - 12-27-2014, 10:40 PM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-28-2014, 07:48 PM
RE: Philco 70 Cathedral Speaker - by morzh - 12-28-2014, 10:17 PM
RE: Philco 70 Cathedral Speaker - by Arran - 12-28-2014, 11:06 PM
RE: Philco 70 Cathedral Speaker - by Steve Davis - 12-29-2014, 07:49 AM
RE: Philco 70 Cathedral Speaker - by morzh - 12-29-2014, 05:46 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
48-482 rear panel help
I also have one of these, again it never had a back, and no trace of one. I have been told that the pushbuttons used to ...Arran — 03:29 AM
48-482 rear panel help
Thanks Joseph. Hope you get to restore your 48-482 before too long!keithchip — 02:12 AM
Need Help to ID this radio 11 tube Philco
RCAs ain't no cake either.morzh — 10:32 PM
Philco 46-480 Electronic Restoration
After a couple of days worth of troubleshooting my signal generator, I gave up. The oscilloscope still worked fine, so I...jrblasde — 09:51 PM
48-482 rear panel help
Yes, I can confirm. I bought one (haven’t restored it yet) which didn’t have a back panel.jrblasde — 09:37 PM
Need Help to ID this radio 11 tube Philco
Try a 39-116.Radioroslyn — 09:24 PM
Need Help to ID this radio 11 tube Philco
I remember Philco 45 being awkward. If I am not mistaking it for some other set. I think there is a phenolic board, or e...morzh — 08:49 PM
Need Help to ID this radio 11 tube Philco
If you want a radio that's difficult to work on, get a 37-620. The one side of the chassis is packed pretty tightly and ...Greg — 07:29 PM
Need Help to ID this radio 11 tube Philco
Philco 16 is not intimidating at all. Despite being an 11-tuber. 37-116 is indeed intimidating. 16 has good space unde...morzh — 04:11 PM
48-482 rear panel help
Thanks for the responses Gary and Bob. I'm a little surprised that there's no back panel - although I know older Philco'...keithchip — 04:09 PM

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

>