2XNOS CV4004=12AX7=ECC83 Mullard Box Plates Military
Pricing & History
-
Sold for
Start Free Trial or Sign In to see what it's worth.
- Sold Date
- Source eBay
1 pair CV4004=12AX7=ECC83 Mullard Box Plate Anode, In Original Military "Valve Electronic" Box. The Mullard CV4004 is rugged version of the 12AX7. Made for the English Military, the CV4004 is one of the best 12AX7 variants you can use for audio. Price has risen sharply on this item, as these are now so rare. Some of the Etched Code on tubes: 641 R3J2; 641 R3K1; 641 R3I3 . Made in Mitcham Factory by Mullard. Tested on Amplitrex AT1000 Tube Tester. Test Results (see attached Test Data) : Plate Current (mA) : Tube 1) 1.2 and 1.8; Tube 2) 1.2 and 1.4 . Minimum Value: 0.82. Mutual Conductance (uMhos ): Tube 1) 1590 and 1800; Tube 2) 1500 and 1500 . Minimum Value: 1088. Items sold "As-Is." I will ship worldwide using Registered Article Service from Singapore Post.
Items in the Price Guide are obtained exclusively from licensors and partners solely for our members’ research needs.
If this item contains incorrect or inappropriate information please contact us here to flag it for review.
If you are the originator/copyright holder of this photo/item and would prefer it be excluded from our community, contact us here for removal.
If you are the originator/copyright holder of this photo/item and would prefer it be excluded from our community, contact us here for removal.