Toshiba 2SC2290 PAIR NPN RF Power Transistor Japan Bench Tested

Original Toshiba 2SC2290 PAIR NPN silicon RF power transistor manufactured in Japan. These vintage devices are intended for RF power amplifier and transmitter output-stage service and are increasingly difficult to source as original Toshiba parts.

These examples are donor-pull devices and have been individually checked on the RF Boneyard bench. Both identify correctly as NPN silicon BJTs, show measurable transistor gain, normal junction behavior, and 0.000 mA collector leakage during the recorded semiconductor test.

LIFECYCLE: DISCONTINUED

HISTORICAL BACKGROUND: Toshiba manufactured the 2SC2290 during the era when Japanese bipolar RF power transistors were widely used in communications transmitters and RF amplifier equipment. Original Toshiba-marked Japanese devices are now encountered primarily as older service stock, surplus inventory, or donor pulls and remain useful for restoration of equipment designed around this transistor family.