![12SY7 Pentagrid Converter Tube. Designed to operate as a converter in AC/DC amplifiers. MFR: RCA. SKU: 12SY7. New old stock. No longer available for export. 12SY7 Pentagrid Converter Tube. Designed to operate as a converter in AC/DC amplifiers. MFR: RCA. SKU: 12SY7. New old stock. No longer available for export.](https://media.rfparts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/1/2/12sy7-jan-crc_rca_1.jpg)
12SY7 Pentagrid Converter Tube. Designed to operate as a converter in AC/DC amplifiers. MFR: RCA. SKU: 12SY7. New old stock. No longer available for export.
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