Dual 510 Turntable Pitch Control repair and lubrication

[@tomrade344]

I never knew this was how Dual accomplished pitch control with a synchronous motor. What a genius solution.

[@12voltvids]

Meet huh. Trust German engineering to come up with that solution.

[@garethfrancis4761]

Great video. I've got a Dual 506-cs that sounds great but the strobe light was always slowly moving backwards. The pitch control did nothing. I was going to get a new deck but thought I'd take the motor apart as per your video. 30 minutes later I've got the speed spot on and the pitch can be adjusted to speed up and slow down the turntable. Well happy. Thanks a lot.

[@Mustangladyme]

Thanks so much!! I fixed it with no problem thanks to you. I searched but found nothing. My Dual 1246 was really froze BAD. Now I'm happy its fixed.

[@eaturfeet653]

Hi moostang. I am experiencing a pitch control issue with my Dual 1246 as well. I see you managaed to fixed yours. Did you just follow all the steps of the tutorial above? were there any parts you had difficulty with?

[@afzaalkhan.m]

Excellent. The information imparted on the pitch control was most informative ,very few would have detailed technical informationn and knowledge to carry out a successful fault repair .

[@rickdasilva5040]

excellent video, I just picked up a 521 Dual, and will attempt this repair. Was wondering why it did not work and your video is really well done.

[@djzoloft]

Engineering this should be Nobel worthy. Fixing it is my dream. Thank you sir.

[@zx8401ztv]

That is an unusual way to change pitch, simple but clever :-) That record has seen a lot of work, all the madness of the era :-D

[@12voltvids]

zx8401ztv That record was used as a Frisby a few times.

[@zx8401ztv]

Ha ha a multi use record :-D If it had been valuable, it would have smashed. (Sods law).

[@zx8401ztv]

outlawrickenbacker, ok i won't :-D

[@12voltvids]

You mean the one that has a chunk missing?

[@12voltvids]

It is actually genius (thats German engineering for you) Since the motor is an induction type you can't vary the speed of the motor.you have few choices. With the rim drive they just used a sloped drive shaft and moved the idler up and down, but that won't work for a belt, So lets just expand the pulley slightly.

[@richardgerathy5397]

Thanks so much for this, I"ve done a complete restoration on mine, and it's going beautifully now.

[@nor4277]

Dual turn tables were pretty popular,as far as a live that shouldn't ever bum up is super lube, synthetic lubricate with teflon ptfe ,and they also make teflon grease,right now I keep on hand is rock and roll teflon grease,some old types of grease and oils will sooner or later the up that's why I like synthetics,stuff with ptfe in it ,that was amazing repair ,I new they used a strobe ,didn't no how it worked,the only thing I use to have was this paper disk with a orange light to tell you if your speed was correct,I got it from radio shack ,it was handy for me .I do love watching your videos

[@mrfrog8502]

17:25 "Sit on my face and let my lips embrace you." 😂

[@JG-DivMan]

Thank you for posting this. My pitch control is working perfectly once again.

[@farquell5782]

Thank you very much. This video helped me no end!

[@Kinski5]

Thank you so much! I got my CS521 with the 860 motor working, it is very similar

[@andreichichak5242]

Thank you. My 510 is now back up to speed!

[@Poppinwheeeeellllllieeeeez]

This is a very good video. Tons of great info.

[@travisranger9720]

I followed your video and did the best I could I think. I had to guess on placement of the split collar back on the shift and re tighten the 2 set screws. I used rubbing alcohol as u did on the shaft and a very minute bit of white gun grease on the spring-loaded rod in the split gear. I even set the pitch in the middle for a perfect rotation either way as u did in the end of the video. Now tho, playback is static and broken, like a bad connection. I've checked the ground and ruled out the receiver. (Hooked up another record player). If u have any suggestions, I'd really appreciate them. Cheers 🍻

[@travisranger9720]

Thanx man. I can fix my 506 now. Good vid

[@stevegeorge6131]

Thanks , Brother....That was very detailed and helpful...I'm working out a model CS506 which has a similar pitch issue

[@krunschold]

that was an informative video thank you. But just a question you said that you can't but oil an the shaft because it would get on the belt, that's ok I understand. In that moment I thought of an other lubricant that could work, but please correct me if I'm wrong. Wouldn't graphite powder be usable on that part?

[@theolordenthusiast2773]

I've been watching your awesome videos, they are absolutely amazing, I love electronics as well. Ever since I was 10. I'm also a amateur radio operator as well. Keep up the amazing videos. Have a great weekend.

[@12voltvids]

I got into electronics when I was 7. By the time I was 13 I had built a digital clock (Heathkit GC1005) and single trace oscilloscope. When I was 17 I built a B/W TV camera from scratch from a set of plans sold through ATV Research. They sold a kit back in the day. When I say "Kit" it was a bag of parts, stencil layout for the PCBoard and a few pre cut pieces of aluminum to make the cabinet out of. They didn't even etch the circuit board. They supplied a blank board with a mask that I stuck down on the board and peeled the back off then tossed the board into the ferric acid to etch it. Then remove the remainder of the mask, drill the holes, mount all the parts, wind the focus and yoke coils by hand. Dam I wish I still had that camera, but as a CCTV camera (and a relative large one at that because it used a big 1" vidicon tube) I was using it as a CCTV camera and had it mounted looking in my parents front yard. One friday night it vanished. I was really pissed because I built it. Insurance replaced it with a commercial camera which had a much better picture but still. I am also an amateur radio operator. Have had my license for over 30 years. Working an a DMR radio unboxing and set up. If I can find the time to learn how to program the dam thing.

[@chass5438]

I always liked the Heathkit weather stations. They're rare, but still out there on eBay every so often, still unbuilt. To expensive for my wallet, but with all the inexpensive wireless stations now, they're p

[@chass5438]

Edit: Oops.. .More worth it than a wired.

[@yrulooknatme]

amazing that pitch control belt survived the years!

[@12voltvids]

Yes I have a Dual 505 myself and that toothed belt broke years ago but the table performs flawlessly.

[@yrulooknatme]

I have a 521 and was lucky to find an original notched belt a couple years back and it's still good. I did have to replace mr.steuerpimpel just the other day. Was an interesting process but well worth the undertaking. I've seen were peeps are substituting orings for notched belts with success. I do love my 521. I bought it new. Has an AT 14sa cartridge. Wished it was the V15 Type IV, but I gave that away years ago. 2 completely different sounds, both good though. Used the AT for recording.

[@chass5438]

I changed my motor to an 860 on my 1237 that I had for parts. Got a new toothed belt and it only changes speed on the pitch to the far plus on the dial, and nothing to the neg. I thought it probably needed adjusting. Also after my complete overhaul, the cueing and the Stop Switch on longer operate. Everything else works as it should. 5.5 nut driver on the nut ?

[@nor4277]

Yeah just thought you might want to try it out it's pretty good stuff I also like tri flow spray too ,

[@kbeast98]

Finally fixed my pitch control

[@isoguy.]

Awsomly awsome, really like these repair videos. Could you use a light lithium grease in the bearings? Or would grease attract dust more than oil? Thank you so much for sharing your skills, I really could watch you vids 24/7, 365. Thank you

[@12voltvids]

ISO Guy No I wouldn't use grease on these. Perhaps an old BSR plastic platter type with the ball bearing under it, but not a precision bearing.

[@isoguy.]

12voltvids thank you, another lesson learned

[@1pilotsteve]

Love the Monty Python...well done Sir....

[@123clis321]

My favorite Dual outside of the 701/721/1219/1229

[@jonathanhartshorn8051]

I love your videos!!! Sorry to bug with a question but the pitch control on my dual 1246 is freaking out. Since your Dual 510 has a similar set up, I cleaned the whole pitch control and motor (and lubricated). The pitch control itself seems fine but when I switch from 33 to a 45 and back to a 33, doing so throws the speed completely out of wack-and won’t work in either 45 or 33. So I play a 33 and a 45 fine the first go, but when I go from the 45 setting back to a 33, the 33 sounds like Alvin and the Chipmunks :( The pin looks fine, I kept these parts dry and clean-- but the shaft (brass?) has one of the 7 fins/slats jutting out a hair from the others. Maybe I need a new shaft, the pitch works, just the switch from the 45 to 33 is not. Thank you again, love your channel!!!

[@leich1m]

thanks, you saved my day. Never took a TT apart before. But managed it. PC works again. any thoughts on auto return of the tone arm at the end of recordplay? Mine just lifts and cuts the engine. Isn't it supposed to return?

[@leich1m]

Never mind my question about the arm. KZbin taught me that this TT will not. 😉

[@LeoGodYT]

Thank you for the video, very informative. I have a 510 and I will need to fix the pitch control. if i need to purchase an 860 motor, do you know where I can purchase one? also, I need a new dust cover for the 510. do you know if 510 and 1229 dust covers are interchangeable?

[@Дмитрий-м6б7х]

я не заметил наверное. чем именно вы смазывали данный механизм ? какой смазкой? I probably didn’t notice. what exactly did you lubricate this mechanism with? what kind of lubricant?

[@glenngoodale1709]

Thank you sir!

[@12voltvids]

glenn goodale Your welcome.

[@timowen938]

Excellent video - love the python song at the end!😀

[@Rfx222]

Hi, really amazing videos, I try to learn as much as I can from your knowledge, thanks a lot. I have recently bought on of these Dual 510, it works fine, speed is correct but after 1 hour of listening music it gets very hot on the motor zone, touch speed control and every metal part near motor is really hot, do you have any clue why? Lot of thanks in advance.

[@teacfan1080]

There's a happy customer somewhere spinning vinyl!

[@paullam292]

Hi, I have a Dual 601 and the pitch control has problem. When I followed this video to remove the motor from the chassis, a piece of metal fell off. I looked up the service manual and it is the 232 071 York Spring. I am not sure where it should be. I will appreciate if anyone can shed some light on it. Thanks.

[@michaelhayes9569]

That explains why my pitch adjuster wasn’t working. It wasn’t connected to the spindle. ❤

[@harkostroef]

my platter doesn't come off like that, there is something very solid blocking it coming off. otherwise my turntable looks100% the same, any idea what might cause this?

[@12voltvids]

It's stuck.

[@28rwags]

I had a question for you. I have a Tuscan DA-30 Dat machine and when I load a tape I get a error on the screen. So I cannot play tape or do anything. What might you think this might be please?

[@12voltvids]

Tascam DA30 you say. The biggest problem with those is that tiny loading belt that you have to buy from Tascam. Yes it is available, at least it was last year when I got one for mine. If you get Mecha Com Err check the 5 volt regulator. That was popped on the unit I picked up. I have a video on both the belt replacement and that regulator problem on the channel, but mine is a DA-40 which is a step up, but uses same transport.

[@28rwags]

I am going to open it and take a video of what it is doing. Is it possible could you possible fix it if I send it to you and if so how much would you charge me?

[@ElectoneGuy]

This and the dreaded "steuerpimpel" are gravy jobs for Dual repairers.

[@LeoGodYT]

Its defiantly the motor. I cleaned everything per your video, thank you. But the speed is intermittent. It either is perfect speed or extremely fast. I’m sure I need the change my SM840 with an SM860. However, I have no clue where to purchase one. I would love it if someone could tell me where?

[@12voltvids]

Yes the bad motors will sometimes start fast. Turn off and then on and it may start the right speed.

[@LeoGodYT]

12voltvids Any idea where I could purchase a n SM860. apparently, there is also an SM 860-4 but doesn’t fit.

[@12voltvids]

@@LeoGodYT eBay

[@bassblaster505]

What happened to your 2018 Caig contest video?

[@markanderson350]

Very unusual German engineering at its best.

[@williamsquires3070]

Why use such a complicated motor instead of a typical shaded-pole induction motor like in other record players? Cute use of an expanding mandrel, though! 👍

[@12voltvids]

I have a feeling that the dual coil deign was for dual voltage. Run them in parallel and 120V run them in series and it is 240. Change the motor pulley for 50 / 60 Hz.

[@n.humbertvidalscifranclau3981]

Hi there ! ;) Anyone have a pdf manual either in French or English ? I found a Dual 510 in my uncle's cellar and would like sooooo much to use it :) Thanks

[@yourbiglebowski]

Plop @ 16:24: and 17:03: bad WIMA capacitor?

[@nor4277]

Thats gum up ,synthetics don't gum up ,where petroleum will in time gum up or break down and harden ,etc,that's why I been useing synthetics.

[@12voltvids]

Sure in another 30 years.

[@timjames6731]

You wouldn’t happen to have an dm-860 motor around to donate. Mine is the am-840

[@12voltvids]

If I had any 860 kicking around I would be selling them for top dollars. I do have 2 dual with 860 motors but they aren't for sale as the tables are on use.

[@timjames6731]

12voltvids is there a chance that the 840 in my table is one of the batches that are ok or are all the 840 motors at no good.

[@timjames6731]

12voltvids i just picked up a dual 510 for $15 it’s running fine but it does have the 840 in it

[@12voltvids]

@@timjames6731 not all the 840s are bad but many are. If it starts at double speed sometimes it is a bad one.

[@timjames6731]

12voltvids ok thank you I also noticed the ground wire is gone can I use some speaker wire as a ground wire? The other thing it was missing is the little lever for the tone arm up and down. It still works with out it.

[@simonwelch560]

Did I detect some Monty Python?

[@12voltvids]

Simon Welch It's a contractual obligation.

[@ScottFrye000111222]

"Sit on my ....what?"

[@12voltvids]

Not politically correct.

[@klystron44]

Has to be the worst designed turntable on the planet.