I built this Rampage from a kit. Notice the red and black Befaco jack nuts. The kit included a special tool for them, but I have a better one. One of the red nuts had the groove machined on the wrong side. So I used silver hex nuts on the two main outputs. The black panel has a sturdy plastic overlay with all the markings. I’ve never seen this before.

Pictured above is the contents of the full kit from SynthCube. The kit is packaged up in several easy-to-use bags. The instructions are easy to follow and the kit is not difficult. It’s all through-hole parts, except for two matched transistor pairs that are SMT and pre-soldered. I was able to use organic washable solder on the main board, and for some of the parts on the control board.

The two boards sandwich together. Interestingly, the component sides face each other, so all components are inside the sandwich. It certainly took some engineering layout to keep all the components from hitting.

Here’s the main board. I didn’t use IC sockets. All the ICs are reliable TL074 chips and the board has good quality, if one ever needs replacing.

Here is the back side of the control board after final assembly. Pots, switches, LEDs and jacks are already soldered.

I plan on posting a comparison between the Befaco Rampage and the Random*Source Serge Dual Universal Slope Generator mk2 (DUSG) for Eurorack.