12 Eby Elco Cinch 12BH7-Size Miniature Vacuum Tube Shields 599 #599 Lot of Twelve Celebria Records These four US-made 6AH4GT tubes

These four US-made 6AH4GT tubes tested as follows on our Paul Hart-calibrated TV7/U:

It has coarsely-crenelated round mica spacers

new in box Sylvania 1H4G tube tested to spec on our Paul Hart-calibrated TV7/U

I just cleaned this signed copy on my VPI 16

new in box US-made 12K7GT tubes tested to spec on our Paul Hart-calibrated TV7/U

12 Eby Elco Cinch 12BH7-Size Miniature Vacuum Tube Shields 599 #599 Lot of Twelve Celebria Records These four US-made 6AH4GT tubesThese twelve slotted side tube shields fit 12BH7 size tubes nicely. No idea who made them. All have the number "599" stamped into their tops. Tube shield dimensions are as follows: Internal Diameter: + 21 MM External Diameter: + 21 MM Height: + 49 MM Additional Characteristics: push on style; flared bases; slotted sides for compression fitting. WE HAVE THOUSANDS OF VINTAGE ELECTRONIC ITEMS. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY