The SLAC Mark II Upgrade Drift Chamber Front End Electronics

The SLAC Mark II detector is being improved by the addition of a new main drift chamber and associated electronics to prepare it for operation as the first detector at SLC. Presented here are the initial signal processing electronics, the preamplifiers, amplifiers and discriminators for the 5832 sense wires, which are located on the detector itself. The performance of the detector is established almost entirely by the drift chamber and this electronics.