Axon CV4 amplifier mount for MXC‑45D series. The MXC-45D’s unique design allows repeatable electrode replacement with a simple but accurate rotating clamp. The top clamp of the MXC-45D is designed to be compatible with Axon CV200B, CV‑7A, and HEKA EPC-10 headstages. Note: The dovetail mounting feature must be ordered from HEKA. The rotating portion is configured such that the probe / pipette rotates up and away from the experiment at a 45° angle through a full 180°. The repeatable stop returns to its location with micron-scale accuracy and the stop’s orientation can be changed simply by loosening a single 1⁄4-20 cap screw.