Model 12AD7. Sub for 12AX7 ECC83 or 7025. Tube Type Dual Triode. ALL TUBE AUDIO. Tube Specifications. Why Buy From All Tube Audio?. Plate Grey. Common Use Audio Preamp.
Model 12AD7. Variant Sub for 12AX7 or 7025. Country Japan. Getter Slanted top O. Manufacture Date —. ALL TUBE AUDIO. Minimum Good Value: 32/32.