back side of the front panel 910 insert the battery 120 into the battery holder 215 with the negative terminal into the battery holder insert the battery clamp 110 over the threaded end of the 6 32 fhms 515 with the sharp pointed contacts bearing against the lamp conductor 540 then position the other end of the clamp over the positive pole of the battery thread onto the 6 32 fhms 515 the battery clamp nut 115 and tighten the battery should be secure in its holder see fig5 from the back side of the front panel 910 all the coils are wired in series a 0 066 u2033 dia wire is attached from the gamut switch solder lug 765 to the u201c 0 u201d switch contact pad 760 of the previous switch between switch contact pads u201c 0 u201d and u201c 1 u201d a coil will be attached to the solder lugs then between switch contact pads u201c 1 u201d and u201c 2 u201d a coil will be attached etc to check coil wiring when all switches are set to u201c 0 u201d all the coils are in the circuit and connected in series when all switches are set to u201c 9 u201d all the coils are out of the circuit and the switches are at minimum resistance see fig5 1 a tissue paper on which.