General Electric GE 10GK6 Vacuum Tube NOS NIB Septal Plate Cap They are microphonic and are

They are microphonic and are fine in the preamp stage of my MP-301 and other gentle environments

new in box Sylvania 6CB6A tubes tested to spec on our Paul Hart-calibrated TV7/U

Transconductance: 1541 / 1532

It was manufactured in the Soviet Union as it has 79-46 date codes

They have engraved / hot-stamped bases

General Electric GE 10GK6 Vacuum Tube NOS NIB Septal Plate Cap They are microphonic and areThis new old stock, new in box GE 10GK6 tube tested to spec on our Paul Hart calibrated TV7 U. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250 IN