(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (48-48/40 and 49-49/40)

1 pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's slightly tilted glass

1 tube) 48/40 and 48/40

1 tube) 49/40 and 49/40  

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