9 hours ago
Do make sure that you twist the 3 wires from the chassis to the transformer, and dress away from tubes, especially audio tubes. Dressing toward the speaker, then along the underside of the peak, and finally to the arch. Rotate the speaker till the terminals are toward the top to keep the secondary connections short. Using #8 fender washers, 8-32 screws and nuts, you can possibly mount the transformer on the speaker without having to drill. Use 2 fender washers and a nut to sandwich the screw onto the frame at one of the slots. Repeat for the other screw and bend the transformer tabs to follow the curvature of the frame.
BTW, check out the magnet on that original speaker. This is one reason for most pre-war sets having electromagnets, as AlNiCo was expensive until after the war. (The other was the use of the field coil as a filter choke.) Of course, battery sets of this type required a permanent magnet.
BTW, check out the magnet on that original speaker. This is one reason for most pre-war sets having electromagnets, as AlNiCo was expensive until after the war. (The other was the use of the field coil as a filter choke.) Of course, battery sets of this type required a permanent magnet.
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis
Best Regards,
MrFixr55