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sound-gear (Adapting) vintage stereo microphone with unknown connector type (?)

I'm just browsing for potential buys online - can anyone identify this connector? It sort of looks like XLR, but I don't know, the image isn't very good quality. Also, there's another cable with dual 1/4 stereo connectors (left/right channels). I believe this cable was used to for tape decks of the time. Are there any simple adapters I could buy/easy methods to convert either of these cable types to use with a more conventional XLR connection or even 3.5mm or would dealing with this be too much hassle?
 

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Solution
Sorry about that, I forgot to mention that the microphone is Sony ECM-990F.

That's the missing piece! Okay, I still cannot find any information on the "Sony connector", but I did look up the operation manual and look over the specs, which gave me some helpful information. Here's a direct link to the Operation Manaul: LINK

This is a stereo mic that was made to go with a Sony portable cassette recorder. Even without a part number on the connector, here's what you need to know:

This is a 3-pin connector on a stereo mic, and the cable terminates the other end with dual 1/4" TS (tip-sleeve) connectors. These are unbalanced connections. A digital multimeter will tell you how the pinout is wired, but essentially you have a pin...
Oh, I think I understand, thank you. Yeah, I suppose I can still try it, I mean since I need to buy 2 of them anyway for using directly into the camera. What about using one of those cheap non-transformer 1/4 to XLR adapters? Is that more likely to cause less problems with that setup or worse?

The impedance transformer is a pretty important feature. I wouldn’t go the cheap route on this.

I don't have to use that setup, but it would be much easier to control the audio levels on-the-fly with the bigger dials, and figured the pre-amp would help with any low volume the mic may have. (that thought comes from people online claiming these back electret mics can "lose their charge" over time, affecting volume levels - not sur how true it is - suppose I was just being a bit precautionary about it)
I would be mainly using a JVC GY-HM150. (Specs. info)

Your camera also has pre-amps that are as good as, if not a little better than, what’s in the Beachtek. As for level control, as long as you gain stage properly and leave yourself enough headroom, you should be fine.
 
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I got the microphone a few days ago, great condition. Got the adapters today, been troubleshooting for about 5 hours. I don't know if the Hosa XLR impedance transformers are both defective or not, but used with this microphone, the volume is very low and turning up the gain on-camera produces massive amounts of white noise and static with muffled audio.

Funnily enough, the 990f seems to work great with my Zoom H2N using the Hosa stereo 3.5mm adapter. Even with the gain turned to 10 on the H2N, the mic is clear with very little noise at all. The mic seems to work very well with the Beachtek, too, but I couldn't get the JVC camera to record audio, even though it seems to be receiving a signal for both channels.

Maybe for whatever reason, this microphone just won't agree with an XLR conversion, which is disappointing since spending $60+ for the transformers. My Panasonic HMC-150 refuses to recognize an XLR signal from this mic with the transformers at all - no noise, static or sign of anything. Haven't tested the mic with the Zoom H6 yet.

Looks like I may have to shop for another stereo mic to use directly in/on-camera. These aren't the results that I was hoping for. But I guess it is what it is.

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