How to replace repair dial tuning cord vintage AM FM stereo receivers D-lab Electronics
HTML-код
- Опубликовано: 10 сен 2024
- This relic showed up at the shop by a local customer. Normally I would not perform this task due to the time involved and the value, or lack there of the receiver. However, the guy loved this old gal, so I caved in. It was not a bad task, but did take about 2 hours. Turned out well. Back in the day, I loved working on stereos, but for now, will stick to tube amps. Solid state Sinema with Sissy!
I did it! Yamaha R300 Receiver, had no cord in it at all. I got some 20lb braided fishing line from walmart and a little spring assortment kit from home depot (like $5) because the wheel had no spring. Found the schematic online which said how to route it, and now it works like new!
Back in the 60s I worked as an independent . I repaired many dial cords on old Crowsley , RCA , Admiral , Zenith , and the like , console tube radios . They were always a mind blower with all the pulleys and usually were broken . Owing to a lack of available info , I took a guess at the routing and number of turns on many of them , but I stuck in there and fixed them anyway . Those jobs became the barometer with which I judged the difficulty of any other kind of repair I did later ..chainsaw engines,cars ,etc . Nevertheless , I loved fixing stuff . Oh yeah , and I ran into many a vermin nest or spider web along the way . The warmth from the tubes was quite attractive to them , I'm sure . 😀
Great vid thanks. I used to string up dial cords back in the day. I don't think I ever got it 100% right. I do remember effing a lot thought. Thanks for the memories.
What a cutie pie...and the kid is adorable, too. 😊
21anthem12 kid issa brat
@@marksymbala1193 you're a brat
Great video and Sissy is adorable!!🥰
I bought a Curtis Mathis tube console stereo, broken dial cord already. Trial and error, but successfully restrung it with new cord and works well.
I respect your experience and advices thanks
Awesome patient broski, good explanation and video for the Vintage electronic tech. Cheers...
Thanks for the informative video. I’m conflicted about trying this on a super clean HK Citation tuner and was searching for some advice to steel my nerve! The only other time I tried something like this was many years ago and it did not end well. In my case the dial cord looks great, but as near as I can tell, the only way to get access to the burned out back-light lamp is by removing it’s cover, which has the flywheel assembly attached to it. You have some great tips in here. By the way, watching this with a BT headset on, and your audio is excellent. Great job on the production values... Back to my problem, I think I’m going to find something at a flea market so I can practice before I tackle a perfectly working dial cord assembly. And, before anyone says anything, without that lamp, you can’t see ANY frequencies.
What a gorgeous kid... Doing in the workshop... Good job Sir... ✌️🇧🇭
Awesome video just discovered it , this is helping me out some, because I’m in a bit of a fix helping a friend with a broken dial cord on an old Sony receiver of similar era as the realistic. I am confused with it a little rt now but It’ll get there 👍🏾👍🏾
Doesn't really matter that the actual value of the unit is not that great, a lot of the older stuff is cool, so in my opinion, well worth it. Only a brave man goes into dial cord territory, though!!!
Got a Pioneer sx-1250 that needs string reattached, thanks for the pointers .
Nice video but you skip over 2 important parts. You should show a closeup of the specs for the braided nylon fishing line you are using. I had to freeze frame over and over again. Looks like 20lb braided nylon fishing line, 20lb. You also skip over the detail on how to tie off and properly tension the string. What's the trick for tying it off at the spring and getting the right tension?
RUclips- Tying a perfection knot.
It helps to have a highly qualified foreman to oversee a job like that. You should put out an advertisement for anyone with a busted dial cord to bring you their stuff :o)
I took on a stereo of that vintage that belonged to a friend if mine a few years ago. It had an intermittent popping noise and a few other problems, one of which was record player :o/ The spindle was locked up due to bad grease and I liked to never got that thing working again. I had a lot of hours in it when he got it back but he was happy so it was all good. 73 NE5U Mike
Someone once told me to thread a string thru springs like that so if/when they slip & go flying you have them on a tether.
Nice job Terry. Gotta love it when the little ones steal the show lol. ☺
i got one of these to do. i'd like to say i am looking forward to it.
Very helpful, thank you! I have a late 70s Grundig radio cassette unit that has exactly the same problem. Need to order some fishing line I think!
Thank you Sir for upload this video, the dial diagram is pretty similar to my stereo receiver setup. My st. recv. is a vintage 1979 ZONDA mexican made.
You're a brave man.
Coffee! Glad you got it in there Terry. I hate them things
Yikes! I remember those days I use to use hemostats as a second hand to keep tension, those were not fun. Many times the dial cord would be broken and that was even more fun. Nice video
One thing that you didn't show is placement and adjustment of the indicator . Also, the Sansui 1000A tube receiver has a dial cord. Most don't though. Love your videos though. Thanks!
When the shaft is locked up it is curtains? Maybe I misunderstood. A stuck tuning cap shaft can be heated up and it should loosen up the fat or whatever it is. Great video ! Edit: I just remembered I filmed the heating of the stuck AM tuning shaft The video is called: "Tandberg SS11-73 Fault finding & Seized AM wheel (part3) "
How do you determine where to attach the indicator needle after stringing the new cord?
I wished he'd have shown that. My guess is that after you know that the string is installed correctly, you can turn the receiver and tune in to your favorite station. Then, reattach the dial indicator and reglue it.
I held my breath through part of this...
But you didn't show how you wrapped the cord around the Tuning Cap
yeah. Mostly useless
How did you finish the repair? Did you tie it?
My service manual says "use bond". No idea what that means.
Look for RUclips - tying a perfection knot.
Parabéns amigo. Você possui uma jovem ajudante igual eu quando minha neta era pequena mas era quando eu desnhava em casa a eletrônica é só um passa tempo. Vida longa e próspera pra vocês! Rio de Janeiro RJ Brasil
You didn't show how to make the connection at the spring and wheel.
...which is the hard part. If you don't get enough tension, nothing works.
...the real fun, is when you open the case...and there is no string...yep...going to be a very bad day!
Right there with you lol. Fortunately there is a service manual online for mine and it shows how the cord is routed.
Stringing a dial cord is something I never could do.
Replace wire on a car radio once, happen to get the scale backward, but I did not want to try again, so I used it as that ..!
My grandpa has a vintage radio repair hobby and that tuning cord os always the biggest pain in the butt!
Great video! Thank you. I have to replace the dial cord on an old Graetz 613. Could you please tell me if the new dial cord is only cut where it connects to the dial itself or is it also cut where it goes around/connects to the main cap?
Hopefully you have time for a quick comment.
Chris in Red Deer, Alberta
I have a maranta cassette deck 5010 B plays but motor slows down and stops playing I believe it needs a new motor can you help
Why didn't you even mention the need for calibrating the dial?
I was replacing capacitors and lamps on an Onkyo T-4055 this past weekend and the dial cord broke. I left it in place and I have dial cord I used to replace on Luxman receiver, but that was 20 years ago and I can't remember what type of glue to adhere the cord to the spring. Would someone suggest what type of glue to use? Thanks in advance.
Great patience
"..May be for another ten years .." I do not think so, because you have two capacitors that had to be changed, 3:41 right next to the heat sink of the transistor (TO-39) it is probably he heated, so always change the capacitors that are near the heat sinks. They warmed well with time and their liquid evaporated, so they changed values. 4:11 There, we can clearly see the two capacitors
i have a grundig ks620u ch=45u console . the tuning cable is just lying in the chassis . how can i get info on redirecting/ routing the cable on correct pulleys etc... this cable has a eye on each end . thank you sir.
See if you can find a Sams photofact on that radio, the dial cord string info will be included.
Would it not be possible to use alcohol to free the stuck part I seen a similar video he freed up the old grease with a type of alcohol maybe it was a different issue though.
When you restring it does dial needle need to be certain spot on cord to tune right station?
I would start at one end till it stops then you cancalibrate the needle too your favorite station.
End point travel at both ends, then attatch pointer for equidistant position.
How can you get rid of the scratchy noise when you use the tuner and volume?
Electronic contact cleaner. Isopropyl Alcohol with cotton swabs.
You have a chance p.m. me I have a radio it's been modified I don't know what the day to it it works it's got a little issue with it how much do you charge the Fitbit stereo receiver 9090
I have to replace the dial cord on a grundig 97, this is my first time doing it and I am not looking forward to it, any tips?
Got an old am/sw radio. The indicator needle was lost. When the case was opened everything had already popped off.
The radio is from the 50's. I will try to fix it.
Yes I just got a realistic TM-102 1964 is the year that it was made in at the 3:55 mark my tuning barely moves so I turned the knob but the cord just stays put and this cord is in very great shape just the part moves it not locked up is there a way to free up a little bit
I have the service manual for the sa-500 technics.
Looking at buying it, but seller says the tuning knob only moves dial to the right and not left.
Is this am easy fix?
How did you set the needle to make sure it was reading proper stations?
Hi, I just ordered an old radio which was a cheap Bell and Howell. It is analog AM FM SW. The tuning dial - needle is kind of not in line
Can I straighten it out? Thanks
Hey i have a 1968 harmon kardon five thirty that looks similar to this. Anyway it made a pop noise and now a loud hum comes through the speakers now along with music. Any idea what happened? Did it bust a cap somewhere?
Hello, That sounds like a leaky output transistor. Check the speaker leads, see if there is DC voltage present. Normally there should not be.
TD
I had the same problem with a Siera old radio which I found the thread has been cut already, any idea to help please?
Though I’m very capable of replacing worn out drive cord, it is one of those jobs I very much dislike doing.
Do you find more and more Vintage Radios are requiring the drive cord replacing? I certainly do! Problem is, nylon braided glass yarn, and woven flax yarn drive cords are no longer produced here in the UK.
I too use high tension plated flax fishing line as a substitute for proper drive cord. I never use nylon fishing line. it is too slippery, and very springy, therefore difficult to fit round the drive spindle, pullies, and master drum. it can also stretch slightly after a few weeks from fitting, therefore causing drive slippage.
Phil.
30 lb test fishing line. Violin bow rosin will keep it from slipping.
where can I buy a needle for the turntable on a hp-238?
Hi ! Thanks for making those videos btw.
I am doing a tuning cord change on my dad 1978 HK 730 and after i install the cord.. the radio channel are the wrong side.. the low are of the right and the high channel are on the left.. how fix that ?
i have a 77 i was working on and my dumb self didn't take a picture and i lost tension on it and all sprung out.now i have to tune by hand until i feel i have enough patience to re spool it lol.thx
Great video thanks
But still trying to repair old national Panasonic lw sw am FM radio chord had to take off to get to citcuit
what was the diameter of the line, I think I need .08
Good job !
Too Cute!!
Hi , could you have used builders string line?
Cheers
Where do I get genuine dial cord. The stuff sold on ebay and amazon stretches like a rubber band and is almost impossible to string because you have to pull it incredibly tight and then it relazes and you have to shorten it again a few days later. Obviousally this stuff is not dial cord because dial cord does not stretch.
Even after all this when tuning the radio it still has some stretch to it.
Where do I get the real stuff. I need .08mm cord. Dont care what color.
Pry?! Break?! Hosed?! My wife heard you say that, me laughing and she said "that guy sounds like he'd be one your cronies in the basement". A compliment I Think? Heh heh Anyway, I'm working on a telefunken console radio and doing the same thing. Pretty confident as I've fixed sewing machine loopers, remote mirror control cables etc. I have a question though and you seem like the guy to ask. This radio has a separate LW & SW tuning cap and picks up some promising scratchy but audible noise. Quite a bit of dust in there. Can I use contact cleaner on it safely and would I want to lube the shaft ends afterwards? Or, am I just dreaming that I might get the SW reception. Guessing I might have to run a SW antenna as well? Any help would be appreciated. Great info btw.
I passed up an old Hallicrafters yesterday because of 2 broken dial cords.
do you ever show you actually doing the fix?
Yes, in many videos
Pete Schreiber I watched the video only for how to assemble the cord and spring back on the flywheel ! with no luck at all.
Pete Schreiber Avery?
Is Solid State Sissy available for hire?
Hey! I was wondering where my Mackinaw city cup went too.......
in my radio that flywheel suddenly got realy hard to turn
Bearings
Nice work Terry !!!! Unrelated question if I may. When you test an amp with the dummy load resistor, what do you use to inject the signal ? I have a single generator , would that work at like 1000mhtz? thanks as always Ron
Hi Ron, I use an old Heathkit audio generator set at 1KHZ, 150mv
thank you sir
1000 mhz is radar stuff - L band.
Try it on a telefunken portable. Took about 2 hours
I use 65lb test fishing line It lasts forever!!!
A Complicated run of cord on my Grundig R25 Receiver.
it has 8 pulleys and no diagram for this rare unit.
Hosed - been there before...
Great video Terry, lovely production and sound, Sissy the star! I have similar problem I think, on A&R (Cambridge) T21 FM tuner, bought in 1981. The tuning knob been slowly less effective, now doesn't move the frequency. T21 does not have a vertical frequency marker, instead has 21 red LEDs at intervals of 1MHz, but I assume a similar string or cord. Fortunately T21 has 5 preset channels, manually tuned at back of unit. These, almost never used, seem to be working still. Will attempt your approach, the technology must be similar.
thanks for the video. wouldn’t it be easier to add your fishing line and than just remove the old cord? simply put
Very carefully....
in that like kenwood , receiver from japan . they are sound gread.
I hate that string when it jumps out its a pain
God dammit this is adorable.
adorable! lol
showed everything but how to do this project..
Is sissy a certfied tech. She is so cute.lol
Do you have any advice for a magnavox solid state alarm clock radio. Has no power to it. And i have questions