Delay Wire Chambers - A Users Guide

The 15 year old blue Delay Wire Chambers are being requested more and more often for short term installations in CERN's secondary and tertiary beam lines. To meet the demand for this type of Multi Wire Proportional Chamber, the mechanics and the electronics, which had been very hard to maintain, have recently been modernised and the present description is meant to guide physicists in the us e of these new Delay Wire Chambers.