RCA 5691 Vintage NOS Red Base Gray Plate Audio Tube (lot of 8, all test strong)
USD 769.50 USD
Specifications
| MPN | 5691 |
| Brand | RCA |
| Model | 5691 |
| Type | Preamp Tubes |
| Country Of Origin | USA |
As you can see, the boxes have suffered for years or shelf-wear. The tubes themselves are in good shape with the RCA logo printed on top of the glass. No printing is visible on the bases. The TV-7 lists the minimum as 32, which puts NOS spec around 49.
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