I have the same as the 3143 you linked (less the 15 inch lo pass section up thru the 52uF input to the upper pass.) I enter at the 1.7mh coil. They sent me that schematic to assemble the parts they sold me. Now I need to update the caps and resistors in the MF. HF and UHF sections I have. What type caps are the 4, 13.5 and 20uF. Look like a wax in a paper cylinder.