Philco Model 66 ps Choke

Hello All,
Wondering if anyone can give me some advice on a Philco model 66 I am working on.
The power supply filter choke is open.  This is a part number 32-7018N The Philco site list this as
70h,  10ma  2300 ohms,  That listing is without the N at the end of the part number, Not sure of the importance of the N designator.
Any advice for a work around or finding a replacement.  Curious how close to these specs have to be?
Schematic  :

http://www.nostalgiaair.org/Resources/827/M0013827.htm      Schematic part location 48.

Thanks in advance

Dale
N2YJJ

Is that the choke from rectifier to rf tubes? If so, it's somewhat critical for keeping line noise out of radio...

Philco choke  $8.00 + shipping

http://www.oldradioparts.com/2a23afl.txt

Click Transformer, which brings up: Transformers Index Main Menu, then click chokes

1329-189  CHOKE     PHILCO 32-7018    65H, 10ma, 2250 OHMS, FIG 3, USED ........................  1  2 1/2 2 0/0 1 1/4   8.00

Thanks all for the help, On we go, This chassis is in ruff shape, But now its personal.