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TD150 Tweaking

Now begins the journey with this TD150 Mk II.  The agenda is as follows:

Step 1

Receiving

1. Receiving inspection
2. disassembly and detailed inspection
3. cleaning and repairs
4. fabricate new armboard
5. assembly with no modifications, adjustment

Step 2

Play and listen

1. Play the table for a time with no modifications
2. Compare the table to the modified TD160
3. Compare the table to the Teres

Step 3

Begin a systematic modification program

1. Maintain original suspended layout but with significant upgrades
2. armboard experimentation (different materials)
3. power supply experimentation (does the motor run smoother at 80 vac than 110 vac...?
4. redesign the plinth for greater rigidity and damping
5. redesign subchassis frame for greater rigidity and damping

Step 4

Listen to some records.

Step 1: Receiving

The process begins

Looking at the TD150 subchassis frame.  Some notes and comparisons to its successor, the TD160.

  Testing the subchassis for deflection under load.  Then comparing to the TD160 subchassis by the same method.

Some ideas for a more rigid subchassis frame.

Looking at the TD150 suspension......and what to do about it.

 Clean-up and prep

Step 2: Play and listen before the upgrades

Early listening impressions

Step 3: Making the modifications

analizing the new subchassis frame

Spring issues

Spring Alternatives...? something significant is discovered...!

New plinth ideas R2

Skeleton Plinth R3    J.J. Jimmink builds the R3

R4

R5

R6