Pair Raytheon 5687 Twin Triode Vacuum Tubes NOS USA B&K747 gm: 110/110 & 110/117
USD 60.00 USD
Specifications
| Brand | Raytheon |
| Type | Twin triode |
| Model | 9-pin miniature |
| MPN | 5687 |
| Country Of Origin | United States |
Pair Raytheon 5687 Twin Triode. Life test good. This tester is set to factory specs and checked. 110/110 and 117/110. Transconductance readings One box was worn out, lid remains. Tube is allowed to heat and then gently.
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