I made up another batch of my variant of the VK3CV model choked Chaparral^®-style feedhorns. Chokes are 7mm diameter, bore is 2mm, Body is 30.75 x 15mm, with an adjustable 4mm diameter coupling cavity. These are made from brass.

Grooves are 0.5mm wide by 0.75mm deep, made with a toolpost spindle at 14,000 rpm using a two-flute carbide end mill in the lathe at 8rpm

A local ham asked me to make up some small heatspreaders for a 5.7GHz SSPA driver section. I used some offcuts of C110 free-machining copper.

M2.5 tapped holes for SMA 4-hole sockets in and out.