4 Philco Number / Type 41 #41 Vacuum Tubes Valves Clear Bottle Lot Of Four Gray Glass new in box US-made 9003

new in box US-made 9003 / JAN-CKR-9003 / VT-203 / JRC9003 tubes tested to spec on our on our Paul Hart-calibrated TV7/U

This hardcover book is in fair condition

Transconductance measured 49/49 where minimum (65%) is 36/36

Noise: -86

4 Philco Number / Type 41 #41 Vacuum Tubes Valves Clear Bottle Lot Of Four Gray Glass new in box US-made 9003These 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. BECAUSE OF THE BIZARRE, INTRUSIVE, CRUEL AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE