1 pair) 6EU7 RCA NOS 

1 tube) 44/32 and 50/32 (DB) 1970

1 tube) 43/32 and 49/32 (EC) 1972

Matched on TV-7D/U

(6EU7=12AX7 with non-tapped filament of 6.3V wired to pins #1 and #2 to reduce hum; claimed to be quieter than 12AX7)

Recommended for

- Sherwood

- Echoplex

- Gibson GA-5