Powermax 2

[crow]

Hi everyone! New guy here and the more I read the more confused I get. I hope someone can help.
I just put a bid on some powermax 2 steppers 1.8 degree, 200 steps, 116 oz, 1.75, 3.75v.
P21 NSXS LSS NS NS 03

P= TYPE- STANDARD
2= SIZE- NEMA 23
1= # OF STACKS- 1 STACK

N= NEMA
S= CONSTRUCTION-SPECIAL
X= TERMINATION- RECEPTACLE
S= WINDING TYPE- SPECIAL

L= ROTOR TYPE- STANDARD
S= SHAFT CONFIGUARATION- SPECIAL
S= SHAFT MODIFICATION- SPECIAL

NS= ENCODER OPTION- NO FEEDBACK

03= SECUENCE NUMBER
My ? is. is this a good stepper? it has no feedback. does it matter? you can tell by the code that alot are "SPECIAL".
should this bother me?
I already put the bid in. should I go for it or just get out bid and look for something better.

[radio-op]

You don't need feedback. Most of the specs look good, the only concern would be the winding being 'special'. Look at http://www.pacsci.com/products/step_...products.html, the Pacific Scientific site for the data sheet if you don't have it. I would ask the seller if he has tested them or knows what is 'special' about the wiring configuration.
Good luck with the auction.
Bill