4 Philco Number / Type 41 #41 Vacuum Tubes Valves Clear Bottle Lot Of Four Gray Glass dark-gray bottles and bottom

dark-gray bottles and bottom

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 58 for Tube One and 60 for Tube Two where minimum (65%) is 40

Noise: -86

4 Philco Number / Type 41 #41 Vacuum Tubes Valves Clear Bottle Lot Of Four Gray Glass dark-gray bottles and bottomThese 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