Hi All,
I've just been given a pair of unmarked microphones. Internally
they're marked EM280A on the PCB. These are battery/phantom
powered condenser/electret designs, I believe by SM.

They seem OK, I would like to get some proper information regarding
these, but SM don't have anything on their website. Does anyone recognise
these? The look absolutely identical to this item in the Thomann catalog'
http://www.thomann.de/thoiw2_tbone_em_900_prodinfo.html


All information appreciated.


Robert