Hello and welcome to The House of Chrome. You are looking at a unique and rare RCA model MI-4030E which seems to be the exact same as the RCA Type 50-A Pressure microphone first produced in the 1933 and was a very modern design using the classic older lower yoke in which to pivot the mic itself. The mic was manufactured into the late 1940's before being discontinued. It comes with the equally unique period cast iron Federal Microphone model desk stand shown.I should state that I don't know what the difference is between the Type 50-A and the MI-4030E is? They are exactly the same in design and I can only assume that one came before the other?
If anybody does know please feel free to let me know? This MI-4030E model utilized a very unique moving element that looked similar to the ribbon mics of the day. There is a single straight wire embedded into a molded diaphragm. A strong magnet generates a small voltage of the same wave form as the sound acting on the diaphragm. I have only seen this element in RCA microphones but they sound very nice when working properly.
This mic has been tested and while it's 100% original the element sadly no longer is working. This particular mic was made for paging and public address purposes abut it would make a great "general broadcasting" mic as well. The MI-4030E is quite massive and heavy. It's made from brass and has a dark brown finish that looks really nice considering it's age. I've only seen a couple of these over the years and this is bar none the nicer I've come across or seen.The front grill looks very nice and free of any dents. Just very lite corrosion / tarnish which you typically see on any older brass objects. The body itself is also free of any dent, fractures or deep scratches. Just typical lite scuff marks.
The RCA badge looks very nice as well and completely legible. The MI-4030E has a unique 3 pin Cannon connection.I've never come across one of these cables before so you'll have to locate one if you plan on fixing and using this mic at some point. The lower yoke functions perfectly and the two thumb screws tighten just as they should.
The yoke has the RCA adapter on the bottom allowing you to mount this to any desk stand you might happen to have though a desk stand is already provided. The stand is a period 1930's era Federal model W-13 made in Milwaukee, WI. It comes with a heavy cast iron base that makes a perfect platform for this mic.
The mic with base is roughly 2 pounds and the total dimensions are appx 5 inches wide X 7 inches tall. The two compliment each other very nicely and this is going to draw a lot of attention anywhere it's displayed. The mic with stand is appx 13 inches tall.
The base of the stand has a very interesting design like few others I have ever seen. There is very lite wear on the base as well as the polished chrome stem. If you're a collector of older RCA mics you won't want to let this one get away. As with all my vintage microphones.. I can promise you will be happy with it for the price paid.
Simply return in the same nice condition... INTERNATIONAL BUYERS ARE WELCOME as well.
If you have any questions feel free to ask and... The item "Vintage RARE 1930's RCA MI-4030E Pressure microphone old w period desk stand" is in sale since Tuesday, December 3, 2019. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Vintage Pro Audio Equipment". The seller is "speedstarerik" and is located in Park Rapids, Minnesota. This item can be shipped worldwide.