[mg34.42]

the Ser number on my philco 490 is B63406 dose any one know how many were built

[mikethedruid]

A quick look through the Gallery section of this site shows the 490, which was introduced in January of 1932, along with the 470. The 470 combines a model 4 shortwave converter with a model 70 radio. The model 490 combined a model 4 shortwave converter with a model 90 radio. The combined production numbers for both was 6000.https://philcoradio.com/gallery2/1932a/#Models_470_490