(!!!!) (Recommended Pair) 811A RCA branded GE NOS and RCA used/very good 1956-1957 same build (55/36 and 56/36)

1 matched pair) 811A RCA branded GE NOS and RCA used/very good 1956-1957 same build

1 tube) 55/36 RCA (1957) JAN-CRC-811A used/tests like new

1 tube) 56/36 RCA (1956) RCA branded GL-811-A GE NOS

Tested on TV-7D/U

- WAVAC MD 811A
- ALTEC LANSING 1570B
- Ideal Innovations, Canada
- Nat. Audio