Mullard GZ37 / CV378 |

Mullard GZ37 / CV378


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The Mullard GZ37 / CV378 is a fantastic rectifier with superb construction and reliability. Made at the Mullard Blackburn plant in the 1960's, they feature a brown base and "O" getter ring. These tubes come in their pristine original British military boxes with corrugated cardboard rolls.
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    I wish I could leave a review of this tube, unfortunately I had ordered the wrong tube. I needed a GZ34. The folks at TubeDepot were great at handling the return. A beautiful tube!

    reviewed by: A. Pack
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