4 Philco Number / Type 41 #41 Vacuum Tubes Clear Bottle Lot Of Four Rega P1 Mono LP I am playing it in

I am playing it in my Pro-Ject Tube Box S phono pre-preamplifier (tube on right) with John Mayall’s seminal "The Blues Alone" album

new in box Zenith 6JH8 tubes tested to spec on our Paul Hart-calibrated TV7/U

This new old stock-testing pair of Silvertone 224 globe

68 and 68 where minimum (65%) is 40

4 Philco Number / Type 41 #41 Vacuum Tubes Clear Bottle Lot Of Four Rega P1 Mono LP I am playing it inThese four Philco clear bottle type number 41 tubes tested as follows on our Paul Hart calibrated TV7 U: 42, 56, 58 and 60 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