Tuning capacitor upgrade.

[BillC]

I have recently machined a threaded boss and two nuts in brass. I used Hex brass bar to produce the nuts, the boss would fit into the rear frame of the tuning capacitor with pressure on the rotor by adjusting the nuts on the threaded boss. The pressure is transferred to the rotor shaft by a small steel ball which sits in small counter bores in the rotor and the boss. The images tell the story. The thread size is 1/2" brass.

 

[BillC]

The repair of this tuning capacitor is nearly finished. The acrylic sheet end plates replace the broken and missing ceramic originals. I might fit two brass rod stays in the upper two holes. The image tells the story.

 

[VK3EB]

Very impressive - better than original with support at both ends of shaft.