1 very low noise pair) JAN-CRP-5814WA Raytheon red tip black plates triple mica "D" getter like new 1958 in white boxes

1 tube) 9.4/10ma Gm=2100/2100

1 tube) 9.6/9.4ma Gm=2100/2000

Good NOS MA range 8-10ma

Good NOS Gm range 1800-2200

Recommended for

- Woo Audio WA4 headphone amp

- Bottlehead Crack

- Bottlehead Foreplay

- CJ PV12

- Jadis amp

- Unison Research Unico-P 2005

- Einstein preamp

- Head-Direct EF1 Hybrid Headphone Amp 2008