Thanks Jeep.

even though it may not matter much, do you know whether the voice coil is
grounded on one side?

73

Tony I0JX
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The connector used is the 3-pin military mic connector, same as on the front
panel of the BC-312 and '342. The high impedance side (only) of the
transformer goes to the tip and ground. The low impedance speaker winding
goes to the voice coil taps, only. I have come across a few LS-3's that used
tip and ring but don't believe that's correct. Reason is, the LS-3 was
designed for the above receivers and BC-312 receiver (only) has DC (filament)
voltage on the ring connection. WA5CAB may have add'l info as he sells new
LS-3s. Hope this assists you.

de K3HVG



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