(!!!) (BEST PAIR) 6CA4 RCA NOS 1969-1970's (52/40 and 53/40 x 2 tubes)

1 pair)  6CA4 RCA NOS 

1 tube) 52/40 and 53/40 (CL) 1969

1 tube) 52/40 and 53/40 (FH) 1975

- Wright Sound phono
- Counterpoint 5.1
- Reinhardt SVT-18 guitar amp
- STROMBERG CARLSON
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- BOGEN DB230
- Marshall EL84 amp
- Concert fidelity preamp
- Zanden 3000 preamp
- Concert Fidelity CF-080-LSX2 Refurbished