RCA 1B5 25S Vacuum Tube Valve NOS NIB 6CL6 Gebraucht They tested 51/52

They tested 51/52

and if it is

Tube One drew 23

This pressing has light surface noise audible in quiet passages and barely audible in voice-level passages

5 milliamps' plate current and tested 2600 micromhos while Tube Two tested 31/3000

RCA 1B5 25S Vacuum Tube Valve NOS NIB 6CL6 Gebraucht They tested 51/52This RCA 1B5 25S tube is new old stock and new in box and 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