The RCA 74-B is a medium sized bi-directional ( Figure of 8 ) ribbon microphone, very good on vocals and low frequency instruments, the 74-B's frequency response is a bit more limited at both ends of the range. They can, however, still be useful in studio recording applications like amplifier and horn recording where the microphone is placed very close to the source and the lack of low frequencies is made up with proximity effect
Being a Ribbon mic you must make care not to have the phantom power switched on when using it.
Classic mic which would look good in any studio, sounds good too.
This microphone is in good condition however there are no worries about service and maintenance with ribbon mics, try Xaudio.com, we do
E&oe.