4 Raytheon 6BA11 Vacuum Tubes Valves NOS NIB Lot Of Four

4 Raytheon 6BA11 Vacuum Tubes Valves NOS NIB Lot Of FourThese four new old stock, new in box Raytheon 6BA11 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

new in box 6AH6 tubes tested to spec on our Paul Hart-calibrated TV7/U

There were no shorts

(New US-made 7408s typically test with plate current from the mid-teens to mid-30s with transconductance from 2300 micromhos or so

This lot of three Philco 25Z5 tubes were tested on our Paul Hart-calibrated TV7/U for emissions

This new old stock-testing Sylvania 6L6GC was tested on our Maxi Matcher 2 for shorts

top mica spacer with mica snubbers

There was no gas and it tested 2170 micromhos with a plate current draw of 25

but also because if it is a brand other than RCA

new in box US-made 12K7GT tubes tested to spec on our Paul Hart-calibrated TV7/U

These tubes have O getters

Transconductance was 1670 for Tube One and 1560 for Tube Two where new/nominal is within one standard deviation of 1900

matching 9-39 date codes