Thanks for visiting the Silent Key Vacuum Tube Sale Website. The tubes listed on this website come from the families of silent keys that ARROW is helping. All proceeds go back to the families of the Silent Key.
The table below is a changing list and will be updated as new items are documented and items are sold.
The table was last updated on 4/20/2026 at 10:00 UTC.
New items added 4/20/2026 at 10:00 UTC
If you are interested in any items on this page, please send an email to sk@w8rp.org with the following information.
– Your name & callsign
– Item(s) you are interested in (Manufacturer, Part Number, Quantity)
– Price you would like to pay for each item
Items are located in southeast Michigan, shipping available (buyers expense)
Please be patient with us as we are volunteers supporting this effort.
| Manufacturer | Part Number | Quantity | Original Box | Notes |
| Tung-Sol Electric Inc. | 2J1U4 | 3 | Yes | Spare Parts for RT-70/GRC |
| Tung-Sol Electric Inc. | 2J1L4 | 2 | Yes | Spare Parts for RT-70/GRC |
| Tung-Sol Electric Inc. | 2J1R5 | 2 | Yes | Spare Parts for RT-70/GRC |
| Tung-Sol Electric Inc. | 2J1S5 | 1 | Yes | Spare Parts for RT-70/GRC |
| Tung-Sol Electric Inc. | 2J1AE4 | 1 | Yes | Spare Parts for RT-70/GRC |
| Tung-Sol Electric Inc. | 2J3Q4 | 2 | Yes | Spare Parts for RT-70/GRC |
| Tung-Sol Electric Inc. | 2J3B4 | 1 | Yes | Spare Parts for RT-70/GRC |
| Tung-Sol Electric Inc. | 2J3A5 | 1 | Yes | Spare Parts for RT-70/GRC |
| Tung-Sol Electric Inc. | 2Z5 877-21 | 1 | Yes | Spare Parts for RT-70/GRC – 3pk Dial Lamp |
| Realistic International | 6CF6 | 2 | Yes | |
| Realistic International | 6CF6 / 6CB6A | 1 | Yes | |
| Realistic International | 6CB6A | 1 | Yes | |
| Realistic International | 6AS5 | 1 | Yes | |
| Realistic International | 6AQ5 | 1 | Yes | |
| Realistic International | 6BL8 | 1 | Yes | |
| Realistic International | 6BQ5 | 1 | Yes | |
| Realistic International | 6CM7 | 1 | Yes | |
| Realistic International | 6EW6 | 1 | Yes | |
| Realistic International | 6HJ8 | 1 | Yes | |
| Realistic International | 6GJ7 | 1 | Yes | |
| Realistic International | 12AT7 ECC81 | 1 | Yes | |
| Realistic International | 12BL6 | 1 | Yes | |
| Realistic International | 12AU7A ECC82 | 1 | Yes | |
| Realistic International | 12AX7A | 1 | Yes | |
| Realistic International | 6GH8A | 8 | Yes | |
| Realistic International | 6GY6 6GX6 | 4 | Yes | |
| Realistic International | 6GS7 | 3 | Yes | |
| Realistic International | 6JC6 | 3 | Yes | |
| Realistic International | 35W4 | 1 | Yes | |
| Realistic International | 20EZ7 | 1 | Yes | |
| Realistic International | 5727 2D21 | 1 | Yes | |
| Realistic International | 5GH8A | 1 | Yes | |
| Realistic International | 6GK5 | 1 | Yes | |
| Realistic International | 6S4A | 2 | Yes | |
| Realistic International | 6HM5 6HA5 | 1 | Yes | |
| Realistic International | 6KN8 | 1 | Yes | |
| Realistic International | 6HZ6 | 2 | Yes | |
| Realistic International | 6JD6 | 1 | Yes | |
| Realistic International | 6AU6A | 1 | Yes | |
| Realistic International | 6AV6 | 1 | Yes | |
| Realistic International | 5AR4 GZ34 | 1 | Yes | |
| Realistic International | 6GF7A | 1 | Yes | |
| Realistic International | 6H6 | 1 | Yes | |
| Realistic International | 6BK4C 6EL4A | 1 | Yes | |
| DuMont | 5AN8 | 1 | Yes | |
| DuMont | 6BY6 | 18 | Yes | |
| DuMont | 6CN7 | 1 | Yes | |
| DuMont | 6DE7 | 1 | Yes | |
| DuMont | 6DK6 | 14 | Yes | |
| DuMont | 6DR7 | 8 | Yes | |
| DuMont | 6T8A | 4 | Yes | |
| DuMont | 6FV6 | 1 | Yes | |
| DuMont | 8EB8 | 1 | Yes | |
| DuMont | 9AU7 | 1 | Yes | |
| Zenith | 6GF5 | 58 | Yes | |
| Zenith | 1V2 | 3 | Yes | |
| Zenith | 6AF9 | 1 | Yes | |
| Zenith | 6AQ5A | 1 | Yes | |
| Zenith | 6BC7 | 1 | Yes | |
| Zenith | 6GS7 | 1 | Yes | |
| Zenith | 6CU5 | 1 | Yes | |
| Zenith | 6CM7 | 1 | Yes | |
| Zenith | 6CX8 | 1 | Yes | |
| Zenith | 6DE7 | 2 | Yes | |
| Zenith | 6DR7 | 1 | Yes | |
| Zenith | 6KE8 | 1 | Yes | |
| Zenith | 12BE6 | 1 | Yes |