Through my Focusrite Twintrack the STC4021 sounds absolutely gorgeous on acoustic guitar, cello,and flute. Due to its spherical shape and the properties of its ‘Romanow’ screen, the frequency response is extremely uniform from any angle (.Tech Spec STC4021 ) As a drum ambient mic (up in the air over the drummer’s right shoulder) it gives a big punchy sound with loads of bottom end weight and smooth silky cymbals.. Not what you would expect from a mic designed in 1935!
Certainly begs the question ‘Has microphone design improved much in the last 75years?’ !!!!!
A number of people have asked me about the wiring of this mic. Pin 1 is hot (ie pin 2 on an XLR) G is earth (pin 1 on an XLR) and pin 2 is cold (pin 3 on an an XLR)
Also, How does the ‘Biscuit’ work?
In order to understand how the ‘Romanow’ screen on this microphone helps to create the truly omnidirectional response of the 4021 here below is the 1935 patent describing its function.
And now……. My very first YouTube video which just happens to be about this mic!