| # | PART NUMBER | DESCRIPTION | PRICE ▲ | STOCK | SHOP | CC | SC |
|---|---|---|---|---|---|---|---|
| 1 | 2D21 | 2D21 | €4.00 | ☺︎ | Baco Army Goods | 🇳🇱 | |
| 2 | 2D21 | 2D21 2D21W EN91 GE NOS BOXED VALVE TUBE | £5.00 | ☺︎ | Langrex | 🇬🇧 | |
| 3 | 2D21 | 2D21 2D21W EN91 MULLARD NOS BOXED VALVE TUBE | £7.50 | ☺︎ | Langrex | 🇬🇧 | |
| 4 | 2D21 | 2D21 / PL21 / 5727 | $15.95 | 56 | The Tube Store | 🇨🇦 | ON |
| 5 | 2D21 | 2D21 RCA NOS NIB Thyratron Electron Tube Made in USA Qty 1 Pc | $45.00 | ☺︎ | NOS Audio Tubes | 🇮🇳 | |
| 6 | 2D21 | 2D21 RCA NOS NIB Thyratron Made in USA Qty 2 Pcs | $60.00 | ☺︎ | NOS Audio Tubes | 🇮🇳 | |
| 7 | 2D21 | 2D21 Kenrad NOS NIB Thyratron Audio Tubes Made in USA Qty 2 Pcs | $90.00 | ☺︎ | NOS Audio Tubes | 🇮🇳 |
nothing here in Tubes & valves