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12BZ7 Raytheon High Mu Twin Triode Tube 12BZ7 Tube High Mu Twin Triode. New old stock * No longer available for export. MFR: Raytheon. SKU: 12BY7A-RAY
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12BZ7 Tube High Mu Twin Triode US Brands12BZ7 Tube High Mu Twin Triode. New old stock * No longer available for export. MFR: RCA. SKU: 12BY7A-RCA
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RCA 12BZ7 Tube Black Plates High Gain Low noise Double Triode Preamp Tube Mint in Box | Reverb Norway
![12BZ7 Philco High Mu Twin Triode Tube. Substitute for the 12AX7. New old stock * No longer available for export. MFR: Philco. SKU: 12BZ7A-PHL 12BZ7 Philco High Mu Twin Triode Tube. Substitute for the 12AX7. New old stock * No longer available for export. MFR: Philco. SKU: 12BZ7A-PHL](https://media.rfparts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/1/2/12bz7_philco_1.jpg)
12BZ7 Philco High Mu Twin Triode Tube. Substitute for the 12AX7. New old stock * No longer available for export. MFR: Philco. SKU: 12BZ7A-PHL
![12BZ7 ITT High Mu Twin Triode Tube. Substitute for the 12AX7. New old stock * No longer available for export. MFR: Chief . SKU: 12BZ7A-ITT 12BZ7 ITT High Mu Twin Triode Tube. Substitute for the 12AX7. New old stock * No longer available for export. MFR: Chief . SKU: 12BZ7A-ITT](https://media.rfparts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/1/2/12bz7_itt_1.jpg)