6CA4 Silvertone by Sylvania NOS 1960 era (54/40 and 54/40)

6CA4 Silvertone by Sylvania NOS 1960 era

54/40

54/40

Tested on TV-7

for:

- Wright Sound phono
- Counterpoint 5.1
- Reinhardt SVT-18 guitar amp
- STROMBERG CARLSON
- Cary SLP90 preamp
- BOGEN DB230
- Marshall EL84 amp
- Concert fidelity preamp
- Zanden 3000 preamp
- Concert Fidelity CF-080-LSX2 Refurbished

- Magnatone