[Pepperoni]

I removed the wire cover from the output transformer for the purpose of taking a pic of the transformer. Here's the best specs I can find for the 37-630 model speaker and it's labeled as a -630X. Note the specs on the transformer and field coil highlighted in red. The output transformer on this speaker reads 168 ohms as stated earlier. 

Can I use the speaker in question on my 37-630?

H-24
10-1/2"
36-1224
37-630X
1-6F6G as Pentode
2580
7,100 Ω
1.25 Ω
02625
450 Ω - Output Transformer Primary
36-3665

1140 Ω - Field Coil Resistance

Pepperoni