| Brand | Coronado |
|---|---|
| Type | NOS Tube |
| Model | 19 |
| Unit Quantity | 2 |
Check the listing for details. Matched Pair Type 19 Coronado ST Bottle Engraved Base Silver Plates Dual Triodes. Condition: Open box. Listed at 60.00 USD. In properly designed circuits objectionable “tube noise” is seldom found. A tube was considered acceptable/new/ passed standards if it tested between the specified minimum and maximum on a tube data sheet or the minimum value specified on the tester (tv7 is minimum is 65%).
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