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

Thread Closed

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:
[-]
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.

>