40-201 Output Xfmr Issues

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

Thread Closed

Linear Mode

40-201 Output Xfmr Issues

Joeztech
Senior Member

Posts: 348
Threads: 48
Joined: Oct 2013
City: Tioga, Texas, USA

#16

12-24-2013, 08:22 PM

I found and corrected the problem I discovered as I was attempting IF alignment. I had the 1st. IF transformer secondary and tertiary windings swapped. I found it doing an ohm meter check. The secondary winding has about an 8-10 ohm resistance and the tertiary winding has less than 0.1 ohms resistance. I connected them to the correct points and the set quickly came into alignment. I found that with just this portion of alignment done, I already am getting signals on all bands and the push-buttons work but need adjusting for some local stations. This radio lives again!

Tomorrow or so I will get around to doing a complete alignment. For now I am happy. Christmas came early here!

Merry Christmas and a Happy, Healty and Prosperous New Year!

Joe

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

40-201 Output Xfmr Issues - by Joeztech - 12-14-2013, 06:14 PM

RE: 40-201 Output Xfmr Issues - by morzh - 12-14-2013, 06:24 PM

RE: 40-201 Output Xfmr Issues - by Joeztech - 12-14-2013, 08:08 PM

RE: 40-201 Output Xfmr Issues - by Ron Ramirez - 12-14-2013, 08:20 PM

RE: 40-201 Output Xfmr Issues - by morzh - 12-14-2013, 08:23 PM

RE: 40-201 Output Xfmr Issues - by Ron Ramirez - 12-14-2013, 08:25 PM

RE: 40-201 Output Xfmr Issues - by Joeztech - 12-15-2013, 07:37 AM

RE: 40-201 Output Xfmr Issues - by Mondial - 12-15-2013, 01:55 PM

RE: 40-201 Output Xfmr Issues - by Joeztech - 12-16-2013, 05:03 PM

RE: 40-201 Output Xfmr Issues - by Joeztech - 12-22-2013, 11:49 AM

RE: 40-201 Output Xfmr Issues - by codefox1 - 12-23-2013, 04:03 PM

RE: 40-201 Output Xfmr Issues - by Mondial - 12-23-2013, 05:57 PM

RE: 40-201 Output Xfmr Issues - by Joeztech - 12-24-2013, 08:21 AM

RE: 40-201 Output Xfmr Issues - by Joeztech - 12-24-2013, 09:48 AM

RE: 40-201 Output Xfmr Issues - by Joeztech - 12-24-2013, 05:19 PM

RE: 40-201 Output Xfmr Issues - by Joeztech - 12-24-2013, 08:22 PM

RE: 40-201 Output Xfmr Issues - by Joeztech - 01-08-2014, 08:41 AM

RE: 40-201 Output Xfmr Issues - by codefox1 - 01-08-2014, 09:27 PM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Philco 71 Code 125
Hello, I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
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

Who's Online

There are currently 1896 online users. [Complete List]
» 2 Member(s) | 1894 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me