1st Version: AKG C414comb (left)
2nd Version: AKG C414EB (center)
3rd Version: AKG C414EB-P48 (right)
The C414comb and the C414EB contained the famous "CK12 brass capsule" which was originally developed for the C12 tube microphone.
The C414comb came with a swivel mount and fixed cable.
The C414EB was the first version to incorporate an XLR connector which started to establish as standard connector in the USA (the "E"-suffix in AKG´s model names is short for "Export").
The C414EB-P48 was the first regular model featuring a black chrome finish. Background: the ORF (Austrian Broadcast) custom-ordered regular C414EBs with black housing to be unobtrusive in television work.
The C414EB-P48 runs on 48V phantom power only. It contains the infamous Nylon CK12 capsule (often wrongly called "Teflon CK12").
This capsule replaced the cost intensive brass-CK12 already by the late 1970ies during the production run of the original C414EB (from a ser.nr. range of approx. 8000)
The housing design of the AKG C414 and the CK12 brass capsule are developments of AKG´s engineer Konrad Wolf.