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Message: <blockquote data-quote="SparkleBear" data-source="post: 1133582" data-attributes="member: 61490">Yes, when it is clicked into the omni position, the connection is B+ (in psu) through the 14k resistor then through the relay coil then to ground.. when its clicked into card position it goes B+ > 14k > equivalent resistor to coil > ground. This should only be equalizing the voltage when it is actually clicked in. Since we are using 240v from the series secondary the voltage on that rail isn't loaded down to spec when the pattern switch is not clicked into either position. So when the switch is traveling in between pattern positions the B+ in the mic will jump up a lot. I just make sure to always switch my patterns in a quick fashion. It was a bit alarming when I discovered this.I wonder if a capacitor could be added to lessen this voltage spike? Dany knows what he is doing though...Depending on the mic body you are using usually that tab you circled will be coupled to the metal of the mic body through the setscrew that holds the xlr connector into your mic body. Sometimes there is an ring terminal scheme to connect the shield to the body via a wire... You just want to make sure that the body is part of the ground scheme with the shield to keep you safe.</blockquote>