4 RCA 17JB6 17JB6A Vacuum Tubes Valves NOS NIB Lot Of Four Auf Siphnos new in box Tung-Sol 66BC8

new in box Tung-Sol 66BC8 tube tested to spec on our Paul Hart-calibrated TV7/U

This is an original recording from 1939 and it sounds 15-20 years ahead of its time

It tests below the cusp

These three US-made 12AV5 output tubes were tested on our Paul Hart-calibrated TV7/U for shorts

4 RCA 17JB6 17JB6A Vacuum Tubes Valves NOS NIB Lot Of Four Auf Siphnos new in box Tung-Sol 66BC8These four new old stock, new in box RCA 17JB6A tubes tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE 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 PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY HAVE