listing is for a CInemag CM-9887 microphone output transformer. Used to
upgrade microphones such as the Alctron HRM8B AND HRM-2 as well as Apex
210 and similar models . These come without the can.
Check out the data PDF at www.cinemag.biz
http://www.morphproductions.com/apex460transformermod.htm is the link for a step by step mod.
Please insure that these modifications are carried out by a qualified or competent persons.