6 US-Made 5U8 Vacuum Tubes NOS NIB Lot Of Six

6 US-Made 5U8 Vacuum Tubes NOS NIB Lot Of SixThese six US made 5U8 tubes 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 VALUE. IF AN ITEM

Transconductance measured 4100/3400 micromhos

Transconductance measured 2000/1900 micromhos for Tube One and 2000/2000 micromhos for Tube Two

1 milliamps where new 6L6GCs typically test with plate current from the low 20s to mid 30s and transconductance from 2200 micromhos or so

They have DR and BR date codes

stellar flashing

45/49 and 48/48 on our Paul Hart-calibrated TV7/U where minimum (65%) is 40/40

nostalgic-looking matched pair of GE 6P5G triodes was tested on our Paul Hart-calibrated TV7/U for shorts

her positive spirit prevailed and she has become -- for me at least -- a model for dealing with adversity

These five Philco Type 37 triodes were tested on our Paul Hart-calibrated TV7/U for shorts

There were made by Sovtek's predecessor during The Cold War and

This (low side of) new old stock-testing Canadian GE 12SN7GT dual triode was tested on our Hickok 600A for shorts

new in box matched pair of Transleteronic 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U for shorts