This is a mid 70's Grundig that is running a little slow.
Пікірлер: 56
@leeboleebo62282 жыл бұрын
I know it's 02,45am here in UK but I love to watch your videos
@alexandrustatie39742 жыл бұрын
To increase the belt tension some rubber/foam window gasket could increase the size of the old square rubber mounting of the motor. Great videos, you helped me in the past to figure out the fault of my receiver, multi-button input resistor ladder caused by oxidised buttons that developed their own resistance. Thank you 👍
@gabrieleorioli17602 жыл бұрын
That deck is actually well engineered. Many cables are fitted on connectors and not soldered, the boards are neatly placed, the transport is simple enough. I like it.
@UHF432 жыл бұрын
Good old Grundig.
@enricoself22562 жыл бұрын
I would say the tables brakes are not very effective, the supply spool still rotates a bit after play is stopped leaving a slack of tape...
@chillidogkev2 жыл бұрын
I wouldn't trust any important tapes on that unit unless I was very careful with the tape transport and being on hand to smooth out that whiplash in the tape slack every time.
@sunspot422 жыл бұрын
I wonder if it’s not quite working correctly. Maybe something is still a bit gummed up with dried lubricant?
@dhpbear22 жыл бұрын
Interesting the lengths they went to to make it 'low-profile'. That has to be the THINNEST 7" tape deck ever!
@SergZak20232 жыл бұрын
Thanks, Dave. Very interesting repair. I remember a next-door neighbor that was originally from Ethiopia swearing by Grundig electronics. At that time here in the US, all I knew were the typical brands sold here more commonly. Grundig was alien to me.
@12voltvids2 жыл бұрын
Grundig was some under the Normandy name plate here. I have one that was my father and mother in-laws. Have to service it some day.
@chriscutress17022 жыл бұрын
Great job. Fantastic to see an old relic get a further chance to continue entertaining it's owner.
@butcharmstrong96452 жыл бұрын
Super interesting fix. I really don't know squat about electronic repairing but it still interests me to watch someone else do it. Specially if the repair person is as good as you sir.
@robsmart87342 жыл бұрын
Thank you for turning out so many videos, Dave. Man that’s a lot of work
@12voltvids2 жыл бұрын
Tell me about it. And remember I don't have a production company doing it for me. I am the production company.
@groovejet332 жыл бұрын
@@12voltvids Ive said it before, we all expect professional productions these days, and dont think about the effort involved to film & edit a video.
@gabrieleorioli17602 жыл бұрын
I am a simple man, for I see a 12voltvids video about tape stuff and I almost instantly click the like button.
@frankowalker46622 жыл бұрын
I have the same model in my mini studio, they sound great. Thank you for this walk through, I might need it one day. :). Also, in all the years I've had it, I never knew it had a stand. LOL. I use the mounting holes on the back so it can be secured to the wall. Edit: Subbed, BTW. :)
@danmackintosh63252 жыл бұрын
9.50 the sound puts me in mind of Aussie50's (rest his soul) MOT/washer motor execution videos, that resonance & wow in speed when the bearings start to die lol
@SDsailor72 жыл бұрын
Note to self: never get a Grundig. what a nightmare to work on.
@duncan-rmi2 жыл бұрын
I have a wem copicat tape echo from the 70s that also uses combined mains trafo/motor. actually it's a 110V model, which has somehow found its way back to the UK; I need to fix it up & re-export it, I guess.
@ReduktorSzumu2 жыл бұрын
Good job.
@waynesharp16902 жыл бұрын
Nice. Just got myself an old grundig TK14L reel to reel.
@goodun29742 жыл бұрын
I have read that 3 in 1 oil contains a rust-inhibiting polymer that coats the metal with a solidifying film, making it less than ideal for motor bearings and the like. My tapedeck-specialist technician friend uses synthetic Mobil 1 instead.
@SergZak20232 жыл бұрын
Dave uses the 3-in-1 *Motor Oil* in the blue/red/white container specifically meant for motor bearings. This Motor Oil is formulated differently than the much more common 3-in-1 multi-purpose oil in the black/red/white container
@ch2o22 жыл бұрын
well done, I'm getting lots of flashbacks here :) Generally speaking, it should be said that GRUNDIG products (especially televisions) from this time stood for solid and highest quality (at least in Europe). Funny detail: did you notice that even the flat ribbon cables in the device have the German colors ( black-red-yellow)? :) I've repaired a lot of such devices but it's now that I really notice it. Allow me one small complaint: After stopping (after Play or Fast Forward), the left tape runs far too much and is braked too little... one cannot imagine how long the tape runs on there without really braking when larger, heavier reels are used. Apart from this: great job!
@akella7282 жыл бұрын
i have a tape deck "TONIKA-310" with the same motor. creepy miracle
@zx8401ztv2 жыл бұрын
I bet it hasnt been cleaned and lubed for donkeys years. What a difference!, it sounds bang on speed wise 😀 Good solid quality motor, no shit in a grundig. Grundig made great products, shame its dead but there are plenty of units out there. I call all clips ' Ping ' for the obvious effect.
@SDsailor72 жыл бұрын
That Grundig looks totally different than the Akai,s and Teac,s and the Sonys that i have seen.
@dhpbear22 жыл бұрын
There appears to me no playback volume control; all the sliders are turned down!
@12voltvids2 жыл бұрын
The line out is fixed level. The sliders are for the built in amp, and if you read the label that was stuck on it said audio amp NA.
@oldnewstock2 жыл бұрын
Have the TK-745, these recorders aren’t hard to get running mechanically, it’s the electrics that get you. The fancy auto levels system for recordings has given me nothing but trouble, even when I’m trying to use it manually. Still haven’t figured out what’s causing it, and I’ve had the damned thing for almost 5 years.
@larryshaver35682 жыл бұрын
the belt adjustment mechanism[speed selector] may have hardened grease
@larryhuff33832 жыл бұрын
I have a Sony TC399 that started to run slow by about 3%. I’ve determined that the motor run capacitor is failing. I’ve ordered a replacement from DigiKey which should solve the problem. My test tape is one (on a three inch reel) that I made when I purchased the deck over 30 years ago. I recorded 440 Hz for speed checking and 12 kHz for azimuth alignment. The test tape is starting to unfortunately deteriorate and was curious to know if you make and sell test or alignment tapes. Commercial tapes seem to be pretty pricy for my occasional checking.
@moshezaharia46662 жыл бұрын
German electronics tends to be over engineered, but it works great and sounds amazing.
@chillidogkev2 жыл бұрын
So the actual fix to the problem was that the motor was loose? Everything was slipping somehow? I see all the bearing lubrication done, but the torque of that motor would have hardly seen any bearing stickiness that would have accounted for the significant speed problem seen at the beginning. As always, highly enjoyable repair process to watch.
@12voltvids2 жыл бұрын
Did you not see the part where the motor was slow and there was no belts on it? The bearing was causing the trouble.
@chillidogkev2 жыл бұрын
@@12voltvids Yes. But although you commented on the dry state of the bearings, when you had the motor in your hands disassembled, everything seemed to be free moving and turning very easily. Hard to see then how just the bearing was the only culprit for such a dramatic speed issue. That was my feeling.
@12voltvids2 жыл бұрын
@@chillidogkev well it was slow to get to speed and had low torque. It gained speed after running a bit but once cooled down it was very gummed up again. You did see the state of the old lubricant that came out of the bearing didn't you. It was all black.
@bones007able2 жыл бұрын
I'm surprised the reels turn without a tape ....no end of tape switch on this one?
@theoloutlaw2 жыл бұрын
What a very interesting R2R design. The ol' Germans made some good gear in their day.
@mrpedrodrodriguezsr76282 жыл бұрын
A European equipment with mixed Phillips and slotted screws ? How common is that ?
@highpath47762 жыл бұрын
Probably made loads of those slotted screws - which seem far more common in metal to metal parts, but the outer screws with Philips heads seem more common going into plastics.
@mrpedrodrodriguezsr76282 жыл бұрын
@@highpath4776 But I have never seen them combined in one product before , especially in European products !
@alex15202 жыл бұрын
the belts will probably perish before anything else gives out. I assume you gave the heads and tape path a clean+demag off camera :)
@12voltvids2 жыл бұрын
Well belts always go bad especially if it sits around.
@bernardholdsworth21712 жыл бұрын
Hi and thanks for your video.i live in UK,i know nothing about electronics at all,my highest IQ is changing a plug...lol,but i bought a couple of weeks ago a TK747 just to try out,was told no lead with it but already had one,tried to power up on 240v here in UK,but no power,it was getting to the motor,but not beyond that.used electricians tester so it was getting power,stripped it down,motor etc like you did,still nothing,so the last attempt was to try 110v like you have over there,(this model has 110,120,220 and 240v plug switch at back)put it to 110v and used a transformeror, 'knock down box' we call over here,switched on and hey presto,power at last.Could this motor been 'blown' on 240v,i checked the 3 fuses on the motor board and they are all working,any clues?
@SwedishRetroTechNerd2 жыл бұрын
Cool I never knew Grundig made stuff in the US!
@12voltvids2 жыл бұрын
Where did you get that idea?
@SwedishRetroTechNerd2 жыл бұрын
@@12voltvids Well ik Grundig was a brand from Austria and most American friends I have has said that Grundig didnt exsist there but now ik know it does : )
@12voltvids2 жыл бұрын
@@SwedishRetroTechNerd well that's because people imported them.
@chronos42442 жыл бұрын
@@SwedishRetroTechNerd Grundig was a German brand, not an Austrian. Grundig died like all other German and European companies which were in this business.I say this as an German Grundig former employ back in the days, when this tape recoder was build. That's long time ago...very long time.
@jantrammelant2 жыл бұрын
@@chronos4244 grundig was bought by philips. And then philips let it die. Grundig was the bigest reel to reel manufactor in the world. And they Made pretty good stuff.
@afzaalkhan.m2 жыл бұрын
German build Quality
@tacofortgens3471 Жыл бұрын
German Engineering
@1pilotsteve2 жыл бұрын
Za Germans strike again..
@lukasgayer5393 Жыл бұрын
Omg, these were terrible :) I had several in my R2R collection. The sound wasn´t half bad but the cheap approach was obvious. These were the 70´s and compact cassettes were gaining strength.