Offered here is a precision-matched pair of vintage General Electric (GE) 6L6GC power vacuum tubes, featuring the classic Grey Plate internal structure and distinctive Side Square Getters ,Black Base. These American-made tubes are legendary for their rugged reliability and balanced tone, making them the gold standard for high-performance amplification.

Both tubes have been thoroughly analyzed on the Amplitrex AT1000 digital tester. Following our Percentage Method, the results below show how each tube performs relative to the 100% factory design-center specifications for this tube type (Ip = 72.0mA / Gm = 6000 µMhos).