Oops missed that one Aaron! Ok so its super fine, you're right probably 30 gauge or even finer. From memory he said its about 67 ohms?

Does your relay click every time it fires Sep? Im trying to figure a way in which the relay could be further exploited. I was wondering if the NO (normally open) contacts of the relay could be utilized by wiring the power winding through it. I was thinking that the sg's coil could be physically disconnected at all times until the relay is triggered to fire. The triggering would close the contacts on the relay completing the power winding circuit at the same time choking the trigger circuit. Maybe that wont work or wont change anything, just thinking out loud. This could make back popping easier to acomplish if it did work because the circuit is disconnected at all times until it fires.

This relay coil changes the 1 to 1 make up that is common throughout most of JB's designs. I would be interested to see a comparison made with a coil wound 1 to 1 but with a 30+ gauge as the trigger, much like the Bedini/Cole half circuit calls for a much finer gauge on the trigger in the window configuration.