SHORT CUT TO PRINTED CIRCUIT PROTOTYPES

摘要

Methods for producing reliable printed cir¬cuits for prototype work are discussed. Two methods, based on etching of standard copper-laminate boards are found most practical for small-shop prototypes and are described in detail. The silk-screen proc¬ess, using hand-cut stencil film is considered better than hand-drawing where several identical circuit boards are needed. Step-by-step use of the silk-screen process is given;it is concluded that the process offers a low-cost way of reproducing accurately more than 200 prints per hour with un¬skilled hands and minimum equipment.