Dating Astatic Mics.

Astatic has no information concerning the serial numbers or the dates of mics, but we can, with a little detective work get some approximations. The first clue is that the element had a date stamp in the early models. In other cases we have actual purchase dates for a small number of mics from eBay. We know that Astatic moved to Conneaut, Ohio from Youngstown before 1946. Rivets on the label is also a clue to age. Astatic stopped using labels in the 80's and stamped the side of the shell with JT-30. Then stopped using any marks at all.

Image of Label	Approximate Year	Comments
	Late 1930's	Youngstown Ohio, Model 30, Y series
	Early 1940's	Youngstown Ohio must be before 1946. Label is stamped and letters are raised.
	Early 1940's	Youngstown Ohio must be before 1946. JT-40 made in 1940's
	Early 1940's	Another JT-40 Youngstown Ohio, no JT, just 40 so early 1940's.
	Late 1930's	Very Rare 48W made in 1930's
	1945	Very clear Late Youngstown Label. B series dates it around time of move to Conneut. Click image for larger image
	1946	Made after move to Conneaut, but the element was stamped 1946. Label appears to be just painted not stamped.
	late 40's	Another B seies from Conneaut
	Very nice late 40's	This B series is very clear. Click on image for a nice closeup.
	1956?	D-104 from mid 1950's
	1970's	No rivets or serial number. Stamped JT-30 Late 1970's, early 1980's???
	1980's	No rivets or serial number, JT-30 screened on label
	1980's	No rivets or serial number, T-3 screened on label
	1960's ????	Canadian without serial numbers. No information.
	1940's ???	Australian D-104 (Click on image to get a better look)