1958 Standard SR-F25
Shirt pocket radio, thermoplastic cabinet
4 1/16 x 2 9/16 x 1 5/16 inches / 103 x 65 x 33 mm
Six transistors (Hitachi: HJ15, 2x HJ17D, 2x HJ22D, HJ23D, + 1N34A diode)
One standard 9-volt battery
Manufactured by Standard Radio Co., Ltd., Japan
The SR-F25's cabinet also came in ivory and black, but this orange color is nearly unique among early transistor radio cabinet colors. Not many SR-F25s appear to have survived with their "S T A N D A R D" stamping intact.