3 Sylvania Number / Type 78 #78 Vacuum Tubes Shoulder ST-Shape Lot Of Three Emmanuel Sold as-is until I find

Sold as-is until I find a setting

This National Union number 80 rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

It has a mesh plate

Tube One: Tube Two:

4 dB (-92 dB is the Maxi-Matcher's noise floor)

3 Sylvania Number / Type 78 #78 Vacuum Tubes Shoulder ST-Shape Lot Of Three Emmanuel Sold as-is until I findThese three Sylvania plate number 78 tube were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 44, 46 and 52 where minimum is (65%) is 36 and 100% is 55 and 100% is 55. 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