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NOS Vacuum Tubes for Sale | Tubes Unlimited
#1 ONLINE Source for NOS Vacuum Tubes
1950's GE 6072 Triple Mica black plate,,, the best of the best!! Highly recommended for critical applications such as recording microphones and phono stages!
USA made 6688=E180F These 6688A have black plates, nickel pins, and Amperex orange globe printing
10,000 hour heater, frame grid, broadband Pentode
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