Mullard CV4004/12AX7
Matched pair of very strong, rare, vintage Mullard box plate CV4004/12AX7 tubes, military version made in Mitcham, UK. Purchased new from Upscale Audio, used for <200 hours, and then sent to TCTubes for testing with Amplitrex AT1000. See photos for tube codes and test results. Tubes not use...
Matched pair of very strong, rare, vintage Mullard box plate CV4004/12AX7 tub...
