Tested, working spare microphone capsules for the FF33 field phone as well as almost any German phone from WWII and a little beyond that. Most of these are post war, East German, but at least the fit and function. Price is for one.
I tested all of these, any that did not work I threw away and the ones that worked really really well, I put aside for myself. You will not be buying a dud, all that are left work well.
