5AS4A Raytheon "D" getter 1960 era

58/40

62/40

5AS4; Iplate=275mA per diode

5U4GB; Iplate = 225mA per diode

Recommended for

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