Circuit boards for this project are available from:
Please see the coil winding diagram for information on winding the coils. They must be wound in the "same direction or sense". Note that the following information applies to each coil.
Coil L2:
Wire for L2 starts at P1, the tap is at P3, and the ground end is at P2.
Wire for L1 starts at P4, ends at P5.
Coil L3:
Wire for L3 starts at P1, ends at P4.
Wire for L4 starts at P2, ends at P3.
Coil L7:
Wire for L7 starts at P3, ends at P2.
Wire for L5 starts at P2, ends at P1. (Note that P2 has two wires, both
grounds, one for L5 and one for L7.)
Wire for L6 starts at P4 and ends at P5.
Coil L8: Wire for L8 starts at P1, ends at P2.
The Herring Aid 5 Parts Layout
Troubleshooting the Herring Aid 5
Back to the Future with NorCal's Tuna Tin 2
The Herring Aid 5 Schematic
The NorCal Page