mic question.

[KM5WX]

I have come in contact with 2 old mics.They are both the same. The mic hesd says General Electric but underneath it it states Shure Brothers Evanston Il. model s36. i believe that is the base no.. Tmic itself says shure brothers model97u29 They're both in very nice shape and I wondered if anyon could tell me about them. dynamic,electrolitic,impedance and so on. Any help will be appreciated Thanks Richard KM5WX

[G3RZP]

Haven't seen a reference to electrolytic microphones other than in one of my old books of about 1924.

So it most unlikely that they are electrolytic microphones.

[W9GB]

Shure Brothers has an extensive library of documentation for their microphones --
past and present.

The Shure S-36 refers to the 1950s tear-drop (ArtDeco) desk stand for microphones.

The 1950s era model 97u29 refers to the Shure 510MD and S36 stand which were sold as the Fixed-Station Dispatcher to many LMR mfg ( GE, RCA, Motorola, etc.).

Shure 510MD Series (Rudak) -- 4,000 ohm Z
http://www.shure.com/idc/groups/public/documents/webcontent/us_pro_510md_ug.pdf

Shure 510C & 510S series (Hercules) -- 100,000 ohm Z
http://www.shure.com/idc/groups/tech_pubs/@global_managed/documents/webcontent/us_pro_410_ug.pdf

Current Shure classic designs (in production)
http://www.shure.com/americas/products/microphones/classic/index.htm

Some microphones models are highly prized and restored by collectors (broadcast, PA, movie/TV, music industries), the Shure 55 "Elvis" microphone celebrated it's anniversary this past year with special limited editions.

Harmonica demand for the old Green Bullet (model 520) microphone was so great --
it was put back into production in 2009.
http://www.shure.com/americas/products/microphones/classic/520dx_green_bullet_harmonica_microphone

User Guides for discontinued microphones
http://www.shure.com/americas/support/user-guides/discontinued-products/microphones/index.htm