[Harp-L] question for the microphone experts

[William Lifford <william.lifford@xxxxxxxxx>]

Hello all,

I have two mic shells that I'd like to start working on and turn into
useable mics.

Each of the mic shells has a black tar-like substance in the back of the
shell, apparently it used to glue or hold something in place.  Do any of you
have any idea what this gunk is and how I can get it of there?

thanks,

Bill