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

Model 29X dial string
#1

Hi,
Does anyone have any info on restringing a dial on a Model 29X. Chassis work is complete except for replacing the dial string. I have looked everywhere, doesn't show up in any of the dial string diagram guides.

Would appreciate any help. Thanks
#2

I don’t have a string diagram but recently finished work on a 29x, so might be able to help. If you look at the pics I’ve attached, you’ll see that the string starts with a knot tied onto a little tab on the tuning wheel, wraps around the wheel once then runs through a series of sheeves (pullies). There are a couple of them that I couldn’t get a shot of, but you should be able to see that the string heads back to the two springs attached to the wheel. It’s actually fairly intuitive if you study it a bit. It was easier for me as I had removed the entire tuning assembly for cleaning and took note of how the string ran (it was intact before I started). I had to hold the assembly in one hand as I strung the string through the sheeves. Don’t know if that makes things clearer or not. If you’re still confused, I can try to partially dismantle it and draw something that might make more sense.        


Attached Files Image(s)
       
#3

Thank you so much for this!!!! I am going to study it and then I may have a couple of more questions if you don't mind. Does the dial string loop around the tuning dial shaft pully, does't seem to be enough tension to turn the dial when I turn the knob, but could be the way I strung it. I'll keep trying.
#4

Hi,
    I am attaching a picture of how I think the dial string goes based on your pics. Let me know if this looks right or not. Does it make any loops on any of the pulleys/sheeves? Did you have to adjust the spring tension on the tuning knob to prevent slippage?? Doesn't appear that there will be enough tension on the control knob to turn the dial wheel, but I will give it a try. Looks like there are two springs instead of one, where exactly are they attaching?

Thanks


Attached Files Image(s)
   
#5

        To get enough tension, the springs need to be stretched further. I’ve shown where the springs need to be on the pic you uploaded. Maybe this pic will help.


Attached Files Image(s)
   
#6

Actually as I look at this again, I think the springs need to go here…


Attached Files Image(s)
   
#7

Thank you so much again, I will give this a try today.
#8

Thanks for the help on this!!! I have restrung the dial and it works great. I did get some slippage on the tuning knob pullyy/sheeve but I took care of that with a little first aid tape on the inside of the pulley. Just need to finish replacing the remaining resistors and it will be good to go. The owner will be very happy now that it is working again. Thank you again for the help!!!!
#9

So glad to hear that and am happy to help. I’ve finished my 29x and it works great, although I need to clean the tuning cap some more as I get a bit of noise when tuning. I removed it for cleaning during the restoration process and thought it was good to go, but I may need to hit it with more Deoxit.




Users browsing this thread:
[-]
Recent Posts
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM
B&K 1077B no video
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM
RCA 15X
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM
B&K 1077B no video
Hello Tim, I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!. Sincerely...radiorich — 11:07 PM
RCA 15X
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM
Philco 91 Schematic
Hi Dan, I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM
6TPZ and 5TPO Radio Help
I suspect it's been repaired before. And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM
B&K 1077B no video
Thanks Rich! I'll take a look and see what he has. I know there's more modern equipment to be had, but this one I know a...TV MAN — 09:11 PM
B&K 1077B no video
Hello Tim, Here is a link to restoration of one on Phil's old radios site ! Sincerely Richard bk1077bradiorich — 09:01 PM
6TPZ and 5TPO Radio Help
I'm a little befuddled on this one. Should X5 and X4 be tied together like this?  It looks like someone added this at so...R3Sons — 07:33 PM

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

>