help me fix this RCA Ribbon Mic
help me fix this RCA Ribbon Mic
This is an old RCA/Victor ribbon mic. Model PB46C1.
The Cable is hard wired into the mic. Kind of hard to see from the pictures:
There is about a foot of it coming out of the back at which point its been chopped off leaving 2 wires , a black one and a white one, inside of metal mesh shielding.
Is this something I could wire to an XLR connector without having to go into the mic itself ?
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The Cable is hard wired into the mic. Kind of hard to see from the pictures:
There is about a foot of it coming out of the back at which point its been chopped off leaving 2 wires , a black one and a white one, inside of metal mesh shielding.
Is this something I could wire to an XLR connector without having to go into the mic itself ?
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- digitaldrummer
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This is the way to do it.digitaldrummer wrote:you could try - probably white to pin 2, black to pin 3, shield to pin 1 (if phase reversed, then swap pin 2 & 3). but looking at the shape of the thing I'll be surprised if the ribbon is still intact....
Before spending the time though, shine a light through the back of the mic to see if the ribbon's there or not. If it's not, open the mic to see what else might be missing: transformer / mounts / silks / motor. If everything's there, and the ribbon's not, consider sending it to Sank or Enak to have the ribbon replaced.
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From what little I could unearth, you have a very rare RCA prototype from the 30s. Coutant.org has a page dedicated to the RCA PB-46 and an in-depth look at the RCA PB-31 and other early ribbon models that led to the development of the RCA 44-A. All of these microphones are in the same family and probably similar in their wiring schemes. It would be well worth restoring to original condition. The aforementioned Clarence Kane at ENAK is the very best in the business.
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Yeah, that's definitely an old pre-44 mic. I seriously doubt that the ribbon is functional, from the looks of it.
Steve Sank can most likely tell you what's up with it, and can definitely get it into perfect working condition, if not outright restored. I'm biased cuz I actually work with the guy, but you should know that he has Harry Olson's actual ribbon corrugation tool from the RCA factory. He inherited it from his dad, who designed mics for RCA. No joke.
Call 520-829-3108, we'll hook it up.
Steve Sank can most likely tell you what's up with it, and can definitely get it into perfect working condition, if not outright restored. I'm biased cuz I actually work with the guy, but you should know that he has Harry Olson's actual ribbon corrugation tool from the RCA factory. He inherited it from his dad, who designed mics for RCA. No joke.
Call 520-829-3108, we'll hook it up.
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