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

Questions On FM Alignment?
#1

I'm working on a 1950's German Fonovox 7060. I specialize in 20's thru 40' radios and I'm not an FM expert. But I can read directions and understand them less some of the nomenclature This set would blow it's fuse when turned on when I got it over a year ago. I work on it in my spare time. I've actually repaired it to a point where the AM is aligned and working fine. FM is all messed up and I'm hoping it's an alignment problem. 97.1 coming in at 101.3 on the dial etc.

I have a good alignment procedure for the FM. First part is the FM IF Alignment. This is done with an AM sig. gen. and a VTVM. Second and third FM alignment procedures require an o-scope which I no longer have. A really nice Tektronix dual input digital storage model. Sold it after it sat around for years because I don't need a scope for the older radios. Sure miss it now!

Questions are... Under "RADIO DIAL SETTING" what does "Point of non-interference mean"? And under "REMARKS" what does "Adjust for maximum deflection" mean?

I'm all set up and actually adjusting A18 for this "Maximum Deflection". I'm dealing with negative voltages on my meter. I can adjust A18 from around -5Vdc to -13.6Vdc and if I keep going the voltage starts to go down again. So is this "Maximum Deflection" the -13.6Vdc?

I'll try to post this alignment procedure for you to look at but you may have to print it out or enlarge it somehow.
[Image: http://speakeasyradios.com/yahoo_site_ad...22_std.jpg]

I previewed this before posting it and I hope you can read it as I can. It's fairly legible.

Thank folks,
Johnny

"It's Nice To Be Nice To The Nice"
Major Frank Burns Mash 4077th




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Studebaker/Philco AC-2687 car radio
Just speculating of course, but you could probably find another transformer from another car radio of the same era, pref...Arran — 09:00 PM
Studebaker/Philco AC-2687 car radio
Hello I am new here and I could use some advice. I am working on my 1955 Stude/Philco car radio and have determined tha...Pdouglaski — 06:43 PM
Philco 42-345 Restoration/Repair
Thank you MrFix55 and GarySP with helping with the Antenna, for now I am placing the Antenna on the back burner and work...osanders0311 — 02:24 PM
The list of my radio & TV collection!
Yes, Michael. But strangely enough, I managed to keep the original veneer. I must admit that I don't really like it, so ...RadioSvit — 02:21 PM
The list of my radio & TV collection!
Good radio. I bet there was a lot of veneer fixing.morzh — 02:16 PM
Philco 46-480 Electronic Restoration
>> it is because I am retired and a little demented. You have just the right amount of it. No perfectly sane p...morzh — 02:14 PM
The list of my radio & TV collection!
Old Zenith 5S-29 tube radio. First turn-on after repair and reception quality testing. Demonstration of the operation of...RadioSvit — 01:27 PM
Philco 42-345 Restoration/Repair
Welcome to the Phorum, osanders0311!  Regardless how far you intend to restore this set, first priority should be replac...GarySP — 11:51 AM
Philco 46-480 Electronic Restoration
Joseph, it is because I am retired and a little demented. My problem is that I wanted to own a collection that spans th...MrFixr55 — 11:29 AM
Philco 46-480 Electronic Restoration
Wow, here I am with only two restored radios. I’ve got to boost those numbers! If you can’t run with the big dogs, you m...jrblasde — 10:04 AM

[-]
Who's Online
There are currently 343 online users. [Complete List]
» 2 Member(s) | 341 Guest(s)
AvatarAvatar

>