Implications/problems for E1 handset?

[Come in Nighthawk]

...of using an F1 transmitter, dtd. 5/40, in a 625A "seat" that includes a 129A ("filter?") that's dtd. III-36?  Should F1s need a "filter" (or tiny capacitor or whatever it is)??  Will it harm the F1?    Thanx in advance team!!   

[Phonesrfun]

The purpose of the capacitor was to protect the transmitter, although with the F1 type transmitter, it was far less critical than the early "bullet" transmitter.  It will definitely not harm thr transmitter element to leave it in.