4 GM Delco 5BE8 Vacuum Tubes Valves NOS NIB Lot Of Four

4 GM Delco 5BE8 Vacuum Tubes Valves NOS NIB Lot Of FourThese four new old stock, new in box US made 33GY7A 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

There are two GEs

PLEASE BE PATIENT FOR THE FIRST DAY OR TWO IF THE PACKAGE IS STILL MARKED AS "PRE-TRANSIT

anode coolers for cooler operation and longer life

It has a D getter

They're a bit microphonic

There were no shorts and it measured a perfectly-balanced 44/44 where minimum (65%) is 34/32 and 100% is 52/52

These three 12A8GT tubes were tested for shorts

side-D getter and is boldly stamped "Dominion Of Canada

Tube One measured 68/73 while Tube Two measured 72/76 where minimum (65%) is 56/56 and 100% is 87/87

They measured 46

black plates

These tubes were made in the same factory and come from that cusp in time after the RCA buyout of Cunningham