Westinghouse 6X4 Vacuum Tube Valve Rectifier NOS NIB Violin Ensemble 1963

Westinghouse 6X4 Vacuum Tube Valve Rectifier NOS NIB Violin Ensemble 1963This new old stock, new in box Westinghouse 6X4 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

Tube Two (diodes): 71/53

They have gray plates

This matched pair of milspec/industrial GE 5814A / 12AU7 / ECC82 dual triodes was tested on our Hickok 800 for shorts

I have played it in my Bottlehead Crack headphone amplifier and it sounds outstanding

an silkscreened base

OUR SHIPPING RESPONSIBILITY ENDS WHEN THE PARCEL IS ACCEPTED AND SCANNED BY THE US POSTAL SERVICE

Transconductance measured 58 for Tube One and 60 for Tube Two where minimum (65%) is 40

Tube One measured 63/65 and Tube Two measured 66/64 where minimum (65%) is 50/50

They have black plates

6 dB / -82

It has a top O getter

Transconductance measured 57 for both tubes where minimum (65%) is 40