New Hemispheres

Fresh out of the box, two aluminum hemispheres, 22" diameter, 3/8" thick, spun in Vancouver

With Gasket

Trying out the seal, made of 1/16" rubber and hose clamps

First Capacitors

44 caps, 5100 microfarads 350 V; I now have 16 more 5000 MF at 450 V. Lethal! Fun!

End Shot

Mounted on framework made from two shelves that roll on casters; see polar pipe and struts

Equatorial Magnet Spindle

This plastic spindle will hold the equatorial parts of the spherical magnet that surrounds the aluminum sphere.

Early inside

Shows the inner surface finish before baffles and antennas clutter it up.

Magnetrons

1100 W oven magnetrons in 4 banks of 5, each bank using a single squirrel cage fan for cooling.

First Joined

Hemispheres joined together before bells and whistles complicate matters.

First Joined

Another view of joined hemispheres.

Gluing slots

To avoid eddy currents when the magnetic field pulses, there's a longitudinal slot I filled with epoxy. Let's hope it holds under vacuum!

Polar baffles

Each of the 20 icosahedral helical antennas is separated by aluminum sheet metal baffles to avoid cross-talk and magnetron destruction. Both sets of 5 polar antennas have this baffle. Sparker and borescope enter through the poles.

Equatorial Magnet

I inspect the equatorial magnet spindle.

Hemisphere's baffles

This shows the equatorial baffles attached to the polar baffles; each polar baffle has half the equatorial baffles which must fasten on after the antennas are inserted.