Scott SLRM out of its case.
Scott SLRM nomenclature tag.
Scott SLRM
World War II era Navy Morale receiver, AC-DC, 12 tubes. General coverage from 540 KHz to 18.6 MHz in four bands.
The Scott is a fine example of radios built to Low Radiation standards. During World War II, fears of submarines being able to home in on radio signals emitted by a receiver's local oscillator and I.F. resulted in well-shielded receivers built with RF amplifiers to further isolate the oscillator and mixer from the antenna. The RF amp tube is in a separately-shielded compartment (visible on the right-center side of the chassis next to the IF transformers on the right).
Another more real concern was to avoid interference with sensitive on-board direction-finding equipment.
The SLRM was used both by the Navy as the REE receiver and later aboard civilian craft. This example is an early civilian unit with serial number 16. The main difference between the Navy and civilian version is the nomenclature plate. The AC-DC nature of the receiver is not a cost-cutting feature. AC-DC connection is fairly common among radios of the era intended for marine use since many ships were equipped with 120 volt DC systems.
Scott SLRM nomenclature tag.