51SB SSB adapter. The B&W 51SB sideband generator with built-in AC supply was designed to match the 5100 transmitter. To be inserted between driver and final in transmitter.
376 B&W Antenna Switch 1kW, 5 positions.
600 B&W Grid Dip meter.
B&W Model 5100 Transmitter. This transmitter uses four 6146 tubes, two as AM modulators and two for final output. A review article can be found in QST magazine, March 1955. The engineers got things close to right in the design of the 5100. Tuning is non-critical, stability is satisfactroy, even on 10 meters. There is an abundance of modulation and adjustment is easy. This transmitter does not feature speech limiters or any of the popular modulation tricks. It's just pure audio modulating a pair of 6146's finals. The design is simple and effective. Other manufactures could have learned a lesson or two from this design.
Barker and Williamson Model 6100..less than 300. Production year 1962.
Solid State B&W Grid Dip meter, cover 2-110MHZ in six ranges.