Here are a couple of shots of my MMC. It is built with 20 Cornell Dublier caps
r obtained from the Geek Group. Each
cap is rated .15uF/2000V. There are two strings of ten, and they can be used
in series or in parallel. Mounting is on acrylic, with nylon bolts holding it
all together. The left pic shows the front and the right one shows the back.
I haven't run it much yet, and only on a coil that was having issues. Although
all components have at least 1" of clearance, I did experience some arc
over between the banks. However, I think it was due to tuning, not insufficient
spacing. If this continues to happen I'll have to add some acrylic barriers
between the banks.
The bleeder resistors are the standard 10 megaohm 1/2 watt type. It is important
not to place the resistors in direct contact with the caps to prevent arcing
over and damaging the caps. For this reason, I placed my caps on the other side
of the mounting from the resistors.