Description

For sale is a RARE Matched Pair Mullard EF91/6AM6 Blue Shield []-getter tubes. Made in Great Britain, 1956 & 1957. Tested strong at NEW level and perfectly matched. Test Results (Hickok 539c, min: 3.8) Tube 1: 9.1 Tube 2: 9.0 ------------------------------------------------------------------------------- Welcome to Tube Maze Store Here you will find a wide selection of NOS and reissue tubes. We've been in business since 2012 with great reviews on Ebay, so buy with assurance that you will get a great product and if you are not happy with your purchase we will take it back and refund you full amount - no fuss, no hassle! We test and match all tubes before shipping on many available testers - Amplitrex AT1000, Hickok 539c, MaxiPreamp, MaxiMatcher, MaxiBurn. All tubes are also tested for noise and microphonics.