Oahu was a music publishing house and introduced their own line of musical instruments in the 1920s.
These guitars came prinarily from primarily from Kay and Regal manufacturers. In the mid 1930s electric insturment were becoming very poular and Oahu sourced their electrics from Kay and Dickerson. A few amps for Oahu were made by National-Dobro and after World War II most electric instruments and amps were built and supplied by Valco.
Lapsteels of 1940s-1950s for Oahu were manufactured by Kay. You need to do your research for Lapsteels because the famous Tonemaster that was built by Kay then Valco, had very little cosmetic differences other than the Valco-built versions had string-through pickups.
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