• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

N.O.S. Rek O Kut B12H

Katalyst

AK Subscriber
Subscriber
This is way too cool. Advertisement said New Rek O Kut B12H . Yep, it is. Box has water damage and smells musty. This has been on a shelf for a long time. Now to start cleaning and oiling. Anyone know how to date code these?
 

Attachments

  • NOS (7).jpg
    NOS (7).jpg
    96.8 KB · Views: 149
  • Motor Lable.jpg
    Motor Lable.jpg
    83.3 KB · Views: 143
  • Serial Number.jpg
    Serial Number.jpg
    70.2 KB · Views: 148
  • Topside (2).jpg
    Topside (2).jpg
    80.2 KB · Views: 146
  • Platter Rim.jpg
    Platter Rim.jpg
    102.7 KB · Views: 160
Register to hide this ad
Wow. And I'm amazed the rubber band in picture 4 seems to be in good shape after all these years. Though the grommet seems less so.
Great find!
 
Wow x2.

What is holding down the idler? Is that how it comes packaged and there’s some threaded fasteners elsewhere to install? Or is that how the idler is supposed to be secured during operation?

Reminds me of paper brads where you fold over the ears after inserting through the holes.

Or am I missing something? Not an idler?
 
Reminds me of paper brads where you fold over the ears after inserting through the holes.
Yes that is correct. This is how it was shipped from the factory. I truly feel this has not been put together yet. Check this picture of the spindle tip. The cord is still wrapped and tagged.
 

Attachments

  • Spindle (2).jpg
    Spindle (2).jpg
    36.2 KB · Views: 78
  • Spindle.jpg
    Spindle.jpg
    44.4 KB · Views: 77
  • Underside (2).jpg
    Underside (2).jpg
    83.1 KB · Views: 77
That’s a fantastic find, `and an outstanding turntable….older ones have a larger diameter idler shaft and a couple of parts differences ….

VR
Andy
 
It Lives! Oiled motor and cleaned the spindle. Then installed the idler. The off setting between 78 and 45 lets the platter free spin. Off between 45 and 33 has a resistance to the platter. Runs in all speeds. Yes the idler is aged but I have heard worse. Now to start looking for an arm.
 

Attachments

  • Running (1).jpg
    Running (1).jpg
    90 KB · Views: 42
Anyone know how to determine the date of manufacture? Here are the motor and capacitor. Bottom of box has a printing date of 58. So after 1958 for sure.
 

Attachments

  • Motor capjpg.jpg
    Motor capjpg.jpg
    85.7 KB · Views: 43
  • Motor Lable.jpg
    Motor Lable.jpg
    83.3 KB · Views: 43
  • Box.jpg
    Box.jpg
    134.8 KB · Views: 43
That's a great Rek-O-Kut there. When made in USA really meant something. Every component you show including the box was made in the vacinity of NYC. Sadly, much of that industry is now gone. Much of the manufacturing in and around that area was for the aerospace and instrument industries, it's no wonder these turntables were built to such high standards.
I did my machinist apprenticeship in the greater NYC during late seventies. Industry was starting to leave by then.
I moved to the NW to make parts for Boeing. I'm still doing just that although the pie slices are getting pretty thin with all of the off-shoring.
It's a problem repeated all over the country. Any efforts to re shore manufacturing get my support.
 
What I have learned so far on this project. Shelf wear is real. Moisture and environment take its toll. Materials gas out/age. The fiber washers used on the idler has aged into a cut off disk. Picture below.
 

Attachments

  • Break in wear (5).jpg
    Break in wear (5).jpg
    88.2 KB · Views: 58
Parts are starting to arrive for the build. Motor mounts and an arm. The arm is missing pieces but looks new. I need to find the mounting/pal nut, side bob weight and armrest. A head shell is on the way. An early stereo head shell I hope will fit the later production arm. Anyone who has parts please chime in.
 

Attachments

  • Arrived arm (4).jpg
    Arrived arm (4).jpg
    142.2 KB · Views: 44
The headshells are proprietary and fit ROK arms, they come in at least 4 different weight, from light to very heavy, some have the ability to add/subtract brass weights….
If you’re looking for headshells send me a message…..
 
A quick mock up. I removed the weight to keep the arm from doing "Wheelies".
 

Attachments

  • Mok up (1).jpg
    Mok up (1).jpg
    93.3 KB · Views: 52
Here are some pictures of the disassembly. Also a pic of the old mount that has cracks in the ferule. Second pic shows wiring. Thirds shows motor and plate. Fourth shows the parts to the spring attached to the plate.
 

Attachments

  • Disassembly for bushes (12).jpg
    Disassembly for bushes (12).jpg
    103.7 KB · Views: 35
  • Disassembly for bushes (14).jpg
    Disassembly for bushes (14).jpg
    114.1 KB · Views: 37
  • Disassembly for bushes (9).jpg
    Disassembly for bushes (9).jpg
    99.6 KB · Views: 37
  • Bushing old vs new (2).jpg
    Bushing old vs new (2).jpg
    67.5 KB · Views: 38
New mounts in. Motor now running quiet. Idler cleaned. Teflon washers have replaced the fiber washers. Temporary plinth and Elephant feet added to clear the big Ashland motor.
 

Attachments

  • In the House 6-23-2025 (2).jpg
    In the House 6-23-2025 (2).jpg
    106 KB · Views: 39
I'm interested to see that two of the three grommets have washers above them. That may give more ability to adjust speed/position on the pulley than without them. I may try the arrangement with my belt drive ROKs, which have a pretty limited amount of adjustment possible.
 
I put the mounts in the same orientation as the originals were. The replacements were taller height. Much more supple neoprene rubber. The age of the parts is the only "Wear" on this table.
 

Attachments

  • Bushing old vs new (1).jpg
    Bushing old vs new (1).jpg
    62.9 KB · Views: 22
I found an envelope under the inner box. A set of leg extenders for use with the short B12 base. This is like a time capsule in many ways.
 

Attachments

  • Leg Extentions.jpg
    Leg Extentions.jpg
    131.4 KB · Views: 43
Back
Top Bottom