Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Philco 80 open coils
#4

Thanks for the welcomes, been on here often searching for info but guess I never joined (thought I had) until now.

Anyhow...so I have previously re wound the osc coil in my 1936 ish Philco 60. There was a LOT of info on that one in here and online but not much if anything on this little 80. I bought and used some 38gauge for the 60 as Ron recommended on this site. It worked well.

So last night I used that enameled 38gauge to do the open antenna coil. Did it just like original, same winding direction, turns and plastic insulator cut outs ect. My only concern is my DC resistance measured 3.5 ohms and the schematic called for 2.66. Should this make any difference?

Does anyone know the physics of winding coils? For instance would a coil with 17 turns of 38g wire have more or less resistance then a coil with 17 turns of 36g wire? I was just curious if one could experiment and get the correct DC resistance.

Thanks


Messages In This Thread
Philco 80 open coils - by bastardbus - 09-25-2015, 01:07 AM
RE: Philco 80 open coils - by Radioroslyn - 09-25-2015, 07:54 AM
RE: Philco 80 open coils - by klondike98 - 09-25-2015, 11:52 AM
RE: Philco 80 open coils - by bastardbus - 09-25-2015, 01:11 PM
RE: Philco 80 open coils - by bastardbus - 09-25-2015, 01:14 PM
RE: Philco 80 open coils - by Radioroslyn - 09-25-2015, 05:48 PM
RE: Philco 80 open coils - by bastardbus - 09-25-2015, 10:23 PM
RE: Philco 80 open coils - by bastardbus - 09-26-2015, 01:21 AM
RE: Philco 80 open coils - by Radioroslyn - 09-27-2015, 11:07 AM
RE: Philco 80 open coils - by bastardbus - 09-27-2015, 11:24 AM
RE: Philco 80 open coils - by sam - 09-27-2015, 01:13 PM
RE: Philco 80 open coils - by bastardbus - 09-27-2015, 01:22 PM
RE: Philco 80 open coils - by Radioroslyn - 09-27-2015, 01:27 PM
RE: Philco 80 open coils - by sam - 09-27-2015, 01:30 PM
RE: Philco 80 open coils - by bastardbus - 09-27-2015, 04:00 PM
RE: Philco 80 open coils - by bastardbus - 09-27-2015, 06:24 PM
RE: Philco 80 open coils - by Radioroslyn - 09-28-2015, 07:38 AM
RE: Philco 80 open coils - by bastardbus - 09-28-2015, 04:50 PM
RE: Philco 80 open coils - by Radioroslyn - 10-01-2015, 04:55 PM
RE: Philco 80 open coils - by Radioroslyn - 10-02-2015, 05:50 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today.  Soldered one in and had a successful first power-up.  No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

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

>