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Timeless Thorens TD 150 MK II Overhaul

Join me once again as I overhaul a beautiful and timeless Thorens TD 150 MK II belt drive turntable.

This one is actually a family affair. This Thorens TD 150 MK II belongs to my brother-in-law, Stewart. Stew inherited it after his brother, Pete, passed away, far too young, about a year ago. Rest in peace, Pete. This gorgeous and very cool Thorens TD 150 carries Pete’s personality and love of vinyl with it. She desperately needed some TLC, though, so Stew asked me if I could bring her back to life. You can anticipate my answer, so let’s take a look at that process in another overdue turntable article.

Make sure you read right to the end to see how she sounds in her new home!

Thorens TD 150 MK II
The classic Thorens TD 150 MK II, as she arrived in the workshop

Background

I have a real fondness for proper old-school Thorens turntables like this 50+ year old TD 150. I’ve worked on all the classics over the years, including the Thorens TD 125, TD 124, TD 147, TD 160, and others I’ve not written about yet, but will in due course.

The Thorens TD 150 and TD 150 MK II are well-made, compact, transcription-style turntables. What does transcription mean? It was a term used back in the day to indicate that the inherent fidelity of the system was great enough that it could tolerate really critical use cases, like ‘transcribing’ vinyl to magnetic tape, for example.

Being made in West Germany, at the famous EMT factory no less, everything is metal, wood, with a sprinkling of high-quality plastics only where necessary. The balanced platter is weighty for the time, and sits atop a precision-machined bearing assembly that takes a considerable amount of oil to fill. This one was totally dry!

Who is/was EMT..? Oh, they just made some of the greatest turntables ever, like the EMT-950:

EMT-950
What’s that? That? Oh, that’s nothing, just an EMT-950, one of the great turntables of the modern era!

One of the unique features of this and other Thorens machines from this era is the plug-in style adjustable headshell. By adjustable, I mean able to compensate for VTA errors, a very unusual feature. Usually, headshells are adjustable for azimuth only.

The TD 150 is a suspended sub-chassis design, like the Linn LP12, Ariston and Sota turntables from this era that again, will be the subjects of upcoming articles. Most of you will already know that I don’t love these wobbly designs. They certainly don’t work very well in many environments; this is indisputable, but with careful setup and the right environment and placement, they can work well enough.

The truth is, I prefer almost all Thorens models, including the TD 150, over these others, for reasons I’ll get into as I write more on these models. The mythology of certain brands comes back to that great British hi-fi press whitewash I’ve discussed previously.

Did the Brits want it known that a then Swiss company was selling a German-made turntable that was better than lesser home-grown products made during a particularly bleak period of industrial decay in Great Britain? No, of course not, and they (What Hi-Fi?, HiFi Choice, Gramophone etc) did what they could along with the retail industry to inflate local manufacturers, without consideration of the facts, or the ethics of doing so.

This approach fooled many, myself included, until I knew better. As an impressionable teen, I shudder to think of how I disparaged my Dad’s Pioneer PL-12. Sorry Dad. Indisputable evidence based on experience eventually proved otherwise, of course, which brings us here.

This is a conversation I’ve had with many customers over the years. Some were dubious, only to come back to tell me I was right all along and that they’d purchased an XYZ. Of course I’m right, facts are facts, science is science, and stories are stories! Most people have never seen, let alone heard or owned, the wonderful turntables I talk about here, and so there’s an element of trust involved. Customers and readers have learned to trust me over magazines filled with paid advertising and retailers who have to sell products to keep the lights on. I appreciate that.

The great Ariston v Linn battle is another related tale that others have covered, so I won’t get into it here; suffice it to say that it gave Linn a very unfair jump, which the British hi-fi press then catapulted into true modern mythology. If only you could see inside one! More on that another time 🙂

Thorens TD 150 MK II Specifications

Adapted by Liquid Mike from HiFi Wiki and Vinyl Engine

  • Years of manufacture: 1969 – 1973
  • Manufactured in: Germany at EMT, quite the pedigree!
  • Color: Walnut, White
  • Motor: 16-pole synchronous AC motor
  • Power consumption: approximately 10 Watts
  • Dimensions: 394 mm x 325 mm x 125 mm (WxHxD)
  • Weight: 6.7 kg
  • Original price without cartridge: 384 DM / $380 AUD (1970), with Stanton 500 cartridge: 508 DM / $500 AUD (1970) / $5000 AUD in 2025. That’s right, let that sink in.

Overhaul

As I mentioned, this Thorens TD 150 MK II had sat for a while and had likely not received service for decades. This is typical of many ownership scenarios; it’s not a criticism of previous owners of this TD 150, but it is not the way machines like this should be maintained. All electromechanical devices need cleaning, adjustment, parts replacement, and eventually refurbishment. Turntables are no different, so let’s give this lovely old girl the TLC she deserves.

Thorens TD 150 MK II
A nice view with the die-cast platter removed, sub-platter still in place. We can clearly see the correct name of this West German-manufactured turntable: ‘Thorens TD 150 MK II’, not Mk2, not TD-150, etc. Might as well get this right, while we have incontrovertible evidence.
Thorens TD 150 MK II
Here, I’ve removed the sub-platter for deep cleaning and inspection of the bearing, which should hold several mL of premium bearing oil. This one was bone dry, not a single drop in there! Note the wide diameter of the precision-machined bearing well, no puny bearings here. This shot shows the spartan arrangement of controls, and the lovely, almost deco-style tonearm, with its tracking and lateral/anti-skate weights. Speed/on/off is on the left, arm lift/lower to the right. VTA is adjustable both in the traditional sense at the tonearm pillar and with some adjustment possible at the headshell.
Thorens TD 150 MK II
There’s a bit to attend to underneath the top deck of suspended subchassis turntables like this one. Here, I’m checking and tightening wiring, lubricating mechanisms, and the motor bottom bearing, and I’ll also be adjusting the suspension a bit later. Again, note the preponderance of metal. These parts just don’t wear out or break under normal use. BTW, the service manual states that the motor bearings should be lubricated every 1000 hours. Even if we took the ‘in-use’ time as say 10% of the total hours since this TD 150 was made, that’s 48 times they should have been lubricated by now, in theory. Do you think they’ve been lubricated 48 times? I doubt they’ve been lubricated EVER, until now, based on what I saw here!
Thorens TD 150 MK II
With synthetic bearing oil now in the spindle bearing, a cleaned and re-finished subplatter belt surface and all other major mechanical service aspects attended to, it’s time to get the deck able to play a record again, and to repair the flaked-off black armboard veneer/paint, and detached name badge. I’ve assembled the bits I need, including a new Audio Technica AT-VM95E and premium drive belt.
Thorens TD 150 MK II
I’ve now installed the new cartridge using some fine screws and washers, allowing me to retain the original headshell and mounting scheme. Overhang can be adjusted via the screws you see near the finger lift, and VTA, as mentioned. Eagle-eyed readers may be wondering about the cartridge choice. Whilst it’s technically an excellent solution, it is a basic option, by design. This job is a gift from me, for use in a modest system, and we don’t yet know how much it will be used. The 95E is an excellent starting point, and if Stew wants improved performance, I will fit something better for him, no problem! A 95ML or SH stylus can be used here and will yield a useful improvement.
Thorens TD 150 MK II
A headshell that allows for overhang and VTA adjustment via this sliding arrangement, in 1970? Yep! Note the non-standard pin-type fitting, though. Now, is this the most stable headshell arrangement? No, definitely not, but this was 1970, remember, and as a part of this turntable system, it works well enough.
Thorens TD 150 MK II
Here, I’m testing that everything now works correctly, and adjusting the suspension to have everything sitting level and symmetrically. You’ll note that I’ve reattached the ‘Thorens’ badge too.
Thorens TD 150 MK II
My multipurpose wooden blocks come in handy here
Thorens TD 150 MK II
After further adjustments, this Thorens TD 150 MK II is running superbly and sounding amazing. Adjustments made here include overhang, azimuth, tracking force, VTA, arm lifter height and suspension level and lateral positioning.
Thorens TD 150 MK II
These flaked-off pieces of armboard veneer/paint bothered me, and the potential for it to keep going was not lost on me. I have a solution that retains the patina of the rest of the armboard, but just improves the look a little and locks the adjacent pieces in place.
Thorens TD 150 MK II
Note the satin patina of the black veneer or paint. I want to try to match that.
Thorens TD 150 MK II
Stage one involves filling the area with a matching satin enamel.
Thorens TD 150 MK II
Just a case of leaving this to dry and then inspecting it to see how we did. The paint will infiltrate the adjacent loose pieces and hopefully hold it all together.
Thorens TD 150 MK II
And it has, I’m pretty happy with that.
Thorens TD 150 MK II
It’s not perfect, but a big improvement, I think. The armboard can be stripped and refinished later, if desired, but the entire deck has patina; that’s the point of a beautiful 50-year-old piece like this!
Thorens TD 150 MK II
Now the remainder of the wood needs treament and a drink of furntiure oil.
Thorens TD 150 MK II
Again, much better
Thorens TD 150 MK II
Let’s not forget little details like the tonearm metal parts.
Thorens TD 150 MK II
Nice, this helps preserve the metal parts and their patina.

Results

Nothing earth-shattering here, folks, but as usual, I think you’ll agree that a few hours’ work on this beautiful Thorens TD 150 MK II was well worth it. For me, this is a timeless classic, and the family heirloom aspect of it makes it priceless. The fact that it runs so well now is just icing on the cake.

Thorens TD 150 MK II
Wow! Compare that to how she looked originally and I think you’ll agree that she’s pulled up pretty well.
Thorens TD 150 MK II
Yep, I’m rather happy with that. I hope Stewart is, too. I’m about to deliver it to him, so let’s see.

OK, so what’s the bottom line when it comes to a deck like this early ’70s Thorens TD 150 MK II? Well, if you ask me, this is one of the great turntable bargains. These decks don’t go for a lot these days, and yet in terms of bang for your buck, I doubt you can do much better.

Thorens TD 150 MK II
Those looking closely might wonder why I didn’t polish the platter. It’s a bit like old clocks and wristwatches for me. I actually prefer the look with a little patina that gives away the age of this gem.

A well-fettled TD 150 like this one sounds far better than you might expect, certainly better than the stuff under $2000 new that I regularly listen to, for example. I listen to every deck I service through headphones, which really lets me hear what’s going on. I can always immediately pick a quiet, stable, musical turntable, and this is one.

This deck stands out as quiet, and that’s because it has a really good and now properly lubricated spindle bearing. Freshly cleaned and lubed motor bearings help, and decent quality wiring helps, even though it lacks the separate ground we usually see these days.

The correct grade and quantity of spindle bearing oil are all critically important. Underfilling a bearing will leave it noisy. Using something like 3-in-1 or sewing machine oil will leave it noisy, and overfilling it will make a godawful mess. Technically correct service and all the details, correctly attended to, leave us with a lovely, smooth, quiet Thorens TD 150 MK II.

Thorens TD 150 MK II
Final beauty-shots!
Thorens TD 150 MK II
A plan view, because we can.
Thorens TD 150 MK II
If I needed a third turntable, I could certainly live with a TD 150 like this one.
Thorens TD 150 MK II
Thorens TD 150 MK II
I’m off to deliver this baby…

Update

Thorens TD 150 MK II delivered, set up, and now playing vintage vinyl, with a very happy brother-in-law! We’ve just had a really good listen to it, and what stands out to me in a full system is the low noise level. I’ve written about this, and it’s important. A good vinyl system, even an old and modest one, should be essentially hum and rumble-free, and this one is.

You can crank up the volume, no hum, no rumble. A big part of that is good wiring and an excellent motor and spindle bearing, and this TD 150 has all of that. Oil in the spindle bearing and a properly lubed set of motor bearings helps significantly, of course!

This TD 150, in the Rotel / Dynaudio system it now resides in, sounded lively, spacious, nimble, quiet, and of course, retains that analog richness we all love. Even Stewart mentioned this after just one Velvet Underground track. How about that! I’ve put him on the path of re-sleeving his record collection now, so let’s see how he goes with that rabbit hole.

Either way, I’m sure Pete would be very happy to know his old turntable is being enjoyed once again.

Thanks!

I always like to thank readers for taking the time to visit and read these articles, so thank you! If you’ve found it enjoyable and informative, you are welcome to like, share, and of course, subscribe.

For those in Western Australia with Thorens TD 150s and other lovely Thorens turntables, you already know how happy I am to work on them, so if yours needs service, contact me

Sidenote: As you know, content like this rarely exists elsewhere, and that’s a big part of why I create it. A recent commenter was impressed enough to ask me: Who pays me to write these articles? My surprised reply was “Nobody!”

This site and my work are 100% independent, ad-free, with everything here created by me, on my own dime. This article and video took over four hours, on a day off, with no help, no AI and no farming out repairs as one infamous local repairer does.

I am incredibly proud of the work and this website, yet despite thousands of visitors each week, few ever contribute or give something back. You can support my work and small business with a donation in the footer, as well as by liking, sharing, and subscribing. Recent donors are listed in the sidebar/footer.

Tell your audio friends, it really helps me, and that helps you 🙂


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8 thoughts on “Timeless Thorens TD 150 MK II Overhaul”

  1. Marius Rajanayagam

    Hello Mike
    I have never been a fan of Thorens turntables but, as always, your article brings to light important equipment in the evolution of audio and makes for both enjoyable and valuable reading. The sentimental value in this particular Thorens turntable makes it especially worthy and I feel sure that the music that it reproduces is very special.
    I have to add that the Ariston vs Linn Story only recites Jack Tiefenbrun’s patent claim which was made all the more easy given Hamish Robertson’s alcoholism and untimely death. It is notable that when Ivor first promoted the Linn, it was advertised in the hifi magazines as, “the turntable that used to be called the Ariston RD-11”, i.e., Hamish’s turntable. The “musicality” claim came much later.
    All the best
    Marius

    1. Thanks Marius, I appreciate your thoughts and kind words. I’ll tell you this – I’d take an old Thorens over most of the LP12s I’ve worked on! As for Ariston vs Linn, this style of machine is of marginal interest to me, but I appreciate the added information. I’d forgotten most of the story, but I revisited it in prep for other articles I have coming.

  2. Marius Rajanayagam

    Hello Mike
    I agree entirely with you.
    What I find astonishing about the majority of British turntables is that even the carpentry which one would think they could get right is crudely done. The Linn is a case in point. They now sell the Bedrock which is simply a timber plinth as an upgrade for $20,000.
    My only interest in Linn is that it single handedly set hifi back a hundred years and made way for the Emperor’s New Clothes to dominate the industry. If only Hamish Robertson had never met Ivor Tiefenbrun, the Golden Age of hifi would have continued to flourish and great hifi would be more affordable.
    Your articles keep what is so magical about good hifi alive.
    Best regards
    Marius

    1. This is a great reply, I’ve nothing more to add.

      Well, just one thing, for my customers with LP12s: My LP12 customers likely know my thoughts on these decks, but I can assure everyone that Ariston, Kenwood, Linn, Technics and Thorens machines all receive the same standard of care when they come to me. My views about the technical merits or build quality of a design do not affect the level of care they receive here. I’m sure people know this, but perhaps worth mentioning!

  3. Marius Rajanayagam

    Hello Mike
    One final comment which I feel compelled to make. It is very clear that the quality of your work is exceptional and that your passion for hifi is such that your customers always get the best possible performance from their equipment after you have serviced it.
    I would think that Linn owners get a better Linn (whether LP-12 or anything else) after your service – one that is better than even Linn could do.
    It is one of the many things that I enjoy about your articles – your passion and the quality of your work shines through every article. Your candid views punctuate the excellence of your work, regardless of the equipment.
    Cheers
    Marius

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