3 Zenith 17CK3 Vacuum Tubes Valves NOS NIB Lot Of Three Tray 9P These tubes test poorly but

These tubes test poorly but should work in many applications

This tube has black plates

Is it a Mullard

51/51 and 51/52 respectively

new in box milspec Hytron gray glass JAN-CHY-2C26A transmitting triode tested to spec on our Paul Hart-calibrated TV7/U

3 Zenith 17CK3 Vacuum Tubes Valves NOS NIB Lot Of Three Tray 9P These tubes test poorly butThes three new old stock, new in box Zenith 17CK3 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