Prodelin 1130 Ku band 1.2 m off-set feed dish, 0.6 f/d
W2IMU dual mode feed for the 0.6 f/d dish. 0.80" ID copper to 1.75" OD copper tubing, 0.31 thick. Conical section rolled from .031 inch sheet. Entire assembly Silver soldered. Hardest part is holding it together while Silver soldering. Hardwood blocks help insulate for heat loss reduction.
(below) final assembly, weather proffed with Kapton tape