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The 7.6 ohms is fine, 8 ohm speakers generally will read somewhere between 6 ohms and 8 ohms when measured DCR with a meter. I should clarify - the OT secondary will be grounded on one side to the chassis - the wire will run from the OT to the speaker negative tab on the wafer/socket, and there will be a wire inside the chassis running from there to a ground point. The other wire from the OT will run to the speaker positive tab, this will not be grounded to chassis through it's own wire but it *will* be grounded through the OT secondary. To determine if your positive is grounding out accidentally, you have to lift that connection to the chassis on the negative side. Otherwise you're going to read it as if grounded, it will only be a couple of ohms and look like a short.
Another version of the wafer/socket that was used did not have a separate wire running to a ground point but rather the negative tab was extended in between the two pieces of wafer material to one of the holes for the screws (or rivets) that attach it to the chassis. IF you have one of these, you have to remove the wafer/socket contraption from the chassis to test and you have to temporarily remove one lead of the OT to ensure there is not a continuity between the two tabs.
I've had a bunch of people over time ask me to just go ahead and remove these things, remove the speaker 'cable' and then just use a standard 1/4" jack and cable which makes life a lot easier, especially if you want to run the amp through another cab.
Another version of the wafer/socket that was used did not have a separate wire running to a ground point but rather the negative tab was extended in between the two pieces of wafer material to one of the holes for the screws (or rivets) that attach it to the chassis. IF you have one of these, you have to remove the wafer/socket contraption from the chassis to test and you have to temporarily remove one lead of the OT to ensure there is not a continuity between the two tabs.
I've had a bunch of people over time ask me to just go ahead and remove these things, remove the speaker 'cable' and then just use a standard 1/4" jack and cable which makes life a lot easier, especially if you want to run the amp through another cab.
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