1 Matched Pair) 5U4GB Sylvania NOS 1970's same build

1 tube) 61/40 and 62/40 1970's branded Philips - blue printing - top and side getter

1 tube) 61/40 and 61/40 1970's yellow printing - top getter only

Recommended for

- SET amps
- Wright Sound SET
- Audio Note P4 Balanced mono amps
- Dared MCP7 preamp with phono
- Singlepower
- Modwright Transporter
- Donald North Audio