maniac only has one but they are probably using an H-bridge style drive. i.e. HL then LH to hit it with effectively 12V instead of just 6.

I will be building a dual purpose dumping rig tonight to try dumping the MM78's and I will dump this COP411. The dumping technique is fully documented and looks easy enough, so I will be doing that too.

Dumping and vectoring two games tonight too: Qbert VFD (first 4 colour VFD) and Bambino Football (VFD, D553C)