[Collins] 312B-4/5 wattmeter coupler query

[Yong Surk Lee]

Hello;
    I own a new coupler(rf pick up for wattmeter) which I am planning to use in a 312B-4/5.
This coupler looks exactly the same as the one in 312B-4/5 but internal component values are different.
 This one has 
R3=  6810 
R4 = 7320
R5 = 619
R6 = 681 ohms which are different from the old one in the 312B-4/5.
Can this coupler be used with 312B-4/5? 
Or was this coupler made for different equipment?