Expanded view of the shop service bench. Center shelf, right to left. 1.) Beckman Model 2050 RF Generator, next BK Precision Model 2005B RF Signal Generator, next BK Precision Model 3017 Sweep Function Generator.  Top shelf, right to left BK Precision Model 3025 Sweep Function Generator, next Heathkit Im-4180 Fm Deviation Meter.  Above the Model 3015 Sweep Generator is an MFJ 202B RF Noise Bridge. On the bench top left corner, Elenco Precision Model XP 720 AC/DC Power Supply, next Mercury Electronics Model 501 Component Substitution Box. Other instruments are Tripp-lite 20Amp Linear Power Supply and B&K Precision Model 277 Multimeter.