Astatic D-2

The D-2 and other Astatic crystal microphones were widely available and advertised in many publications through the 1930s, including, for example, the Radio Master's Encyclopaedia of 1936, and the Hughs-Peters Radio Buying Guide in 1937.

From a promotion in Radio Today, 1937

THE MODEL D-2, shaped and styled like a watch immediately wins the heart of every microphone user wherever public appearance is made. Not only beautiful to look at, but does not obstruct performer's face.

Essentially NON-DIRECTIONAL.

Frequency response substantially fat from 50 to 6000 c.p.s.

Built to stand shock far beyond ordinary. Now equipped with plug and socket connector for immediate interchange with K-2 or D-104 on same stand.

Special Astatic cable mounting designed to protect cable against breakage. List Price $25.

Licensed under Brush Development Company Patents - Astatic Patents Pending.