Category Archives: Casses

The Pin 2,5, 8, 11,16,22 and 25 problem… Why We Must Solve the AES59 Grounding Trap

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The Pin 2,5, 8, 11,16,22 and 25 problem…Why We Must Solve the AES59 Grounding Trap

https://www.aes.org/standards/comments/cfc-draft-rev-aes48-xxxx-251124.cfm

The “Pin 1 Problem” Multiplied: Why We Must Solve the AES59 Grounding Trap

By Anthony P. Kuzub Chair, AES-X249 Task Group SC-05-05-A

In the world of professional audio, the transition from XLRs to high-density DB25 connectors was a matter of necessity. We needed more channels in smaller spaces. But in adopting the AES59 standard (often called the TASCAM pinout), the industry inadvertently created a trap—an 8-channel variation of a problem we thought we had solved decades ago. Continue reading →

Hardinge Lathe 204 frame Motor

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Looking to replace the 204 frame motor I watched my favorite teach on the subject

and that pointed me to the plate on the motor I have

Reading deeper into this, this is an OLD style of motor frame. 204 Stopped being used in 1953… Of course, mine is a discontinued motor frame…

Looking more at this I see the 203 and the 204 frames are similar it’s the screw mounting width that is different. I think an adapter plate could work. The only dimension that matter is D and U. U is 3/4″ so the center of the motor must be 5″ from the bottom of the plate. Obviously P must be smaller or equal. Watch out for the boxes that stick off the side for the wiring to enter.

LOOKING AT A MODERN NEMA CHART:

A D of 5″ is no longer a standard. The closest D is 4.5″ that leaves 1/2′ for an adapter plate.

All the newer motors have 7/8 shaft meaning the pully will also need to be changed. The 145T looks interesting… Some shopping:

https://www.emotorsdirect.ca/TECO-RF0024

There is hope.

There are also sexy stainless steel motors….

there are charts for the motor mount brackets: