OPA "Alice" Microphone (round PCB)

is there a point on this pcb to power a small led 1w to get some grill led light ambiance ? . if yes let me know how I can connect? and how much voltage is supplied to the capsule ? thanks

HI Mic , nice work, just love the round style TLMs. Could you please share the boom for the round assembly? Couldnt find. I would love to try one of this, Thank you

Great that you could use this old EV644 body, and I'm glad this works well for you. This all what DIY is.

Hi Mic, I thought you may enjoy seeing this. I had an Electro-Voice 644 directional microphone with a blown voice coil. I replaced that with a JLI-2555 capsule, then removed the E-V transformer in the back and mounted one of your PCBs there. The only modification I had to make was drill a hole in the center of the PCB, to pass the single screw that hold the rear cap in place. That hole severed 4 PCB traces, which I bypassed with Litz wire. I also had to slightly offset one 47mF capacitor that was in the way. Works perfectly. I plan to use it for Zoom calls on my noisy trading floor — normal mikes pic up too much ambient conversation there. Thank you, wonderful work!

Hi Mic, do you possibly have a schematic for either of these? I mainly would like to see a drawing of what you did on the layout for the Hex Inverter board. I pretty much know what I have to do but was just wondering if you had one to make it easier to see how you laid it out. I need to tame the voltage to Vcc on the inverter as the polarizing voltage is too high. Thank You, Bruce