Rare Platinum Matched Pair of NOS RCA 12BH7A Tubes for McIntosh MC30 MC240 MC275
Rare Platinum Matched Pair of NOS RCA 12BH7A Tubes for McIntosh MC-30, MC-40, MC-225, MC-240, MC-275 and many other models, as well as many Marantz, Fisher, Dynaco and Heathkit models. These 50's RCA 12BH7A tubes are great sounding tubes.