2 Arcturus Number / Type 41 #41 Vacuum Tubes Gray Bottle Lot Of Two Musical Paradise MC3 This trio of RCA gray

This trio of RCA gray glass 12BY7 / 12BY7A tubes was tested on our Paul Hart-calibrated TV7 for shorts

Noise: -74 dB / -75

This tube tested above spec for plate current draw and below spec for transconductance

This LP was originally owned by R

2 Arcturus Number / Type 41 #41 Vacuum Tubes Gray Bottle Lot Of Two Musical Paradise MC3 This trio of RCA grayThese two Arcturus gray bottle type number 41 tubes tested as follows on our Paul Hart calibrated TV7 U: 52 and 58 where minimum (65%) is 40 and 100% is 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 AUTOMATICALLY INSURED UP