Sylvania EZ81 / 6CA4 Vacuum Tube Valve Rectifier Mainstream MS 503 LP

Sylvania EZ81 / 6CA4 Vacuum Tube Valve Rectifier Mainstream MS 503 LPThis Sylvania 6CA4 EZ81 rectifier tube was tested on our Paul Hart calibrated TV7 U. It measured a perfectly balanced 51 51 where minimum (65%) is 40 40 and 100% is 62 62. 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

This matched pair of Raytheon black glass 6V6GT output tubes was tested on our Maxi-Matcher 2 at real operating voltages of 400 volts on the plates and a bias of -36 volts for shorts

it is used and has underlining

top to bottom) 25

not included) in my AC-heated Alan Eaton single-ended 45 amplifier and they sound OK

They appear unused and come with boxes

These four US-made new old stock

They have shoulder / ST bottles

J-slot Cinch TS102U03 / SOS-6 tube shields fit 12AX7-size tubes nicely

mesh plate tubes tested 42 and 50 on our Paul Hart-calibrated TV7/U where minimum (65%) is 25 and 100% is 38

2 milliamps' plate current and measured 1880 micromhos while Tube Two (Cunningham-labeled) measured 21

new in box GE 6BW4 tube tested to spec on our Paul Hart-calibrated TV7/U

top chamfered solid-O getters and two additional vertical support rods for increased rigidity and lowered microphonics