4 Sylvania 5Z4 Vacuum Tubes Valves Rectifier Lot Of Four The Cultures Of I am playing them in

I am playing them in one of my Radio Craftsmen SC-2 monoblocks as I write

This matched pair of RCA-MANUFACTURED 6K6GT tubes was tested on our Maxi-Matcher 400 volts on the plates and a bias of -36 volts for shorts

likely by GE

It is dead quiet when the preamp is muted and has excellent frequency response even though this amp was designed for 6SN7s

Enhanced Cooling: yes

4 Sylvania 5Z4 Vacuum Tubes Valves Rectifier Lot Of Four The Cultures Of I am playing them inThese four Sylvania 5Z4 rectifier tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. They tested 46 52, 49 47, 51 51 and 52 52 respectively, where minimum (65%) is 40 40. 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