12 Eby Elco Cinch 12BH7-Size Miniature Vacuum Tube Shields 599 #599 Lot of Twelve Magician's Birthday Transconductance measured 40

Transconductance measured 40

new in box RCA 17JB6A tubes tested to spec on our Paul Hart-calibrated TV7/U

This matched pair of CBS-Hytron 12SN7GT dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

It was made in South Korea

This pressing has very-light surface noise audible only in quiet passages

12 Eby Elco Cinch 12BH7-Size Miniature Vacuum Tube Shields 599 #599 Lot of Twelve Magician's Birthday Transconductance measured 40These 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