Available for purchase is a premium matched pair of 2 pcs vintage RCA 6F6G power pentodes. These authentic Made in U.S.A. valves feature the iconic Black Coated Glass envelopes and carry the S2 date code. They are in New Old Stock (NOS) condition and come in their original RCA Radiotron boxes.

Each unit has been meticulously analyzed on the Amplitrex AT1000. Following the percentage method, the results below indicate performance relative to factory design center specifications (Ip = 34.0 mA / Gm = 2500 µMhos).