Raytheon 0Z4 OZ4 Vacuum Tube Valve NOS NIB Christopher This new old stock-testing Svetlana

This new old stock-testing Svetlana 6550B / 6P27 perforated plate output tube was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -48 volts for shorts

Transconductance measured an almost-perfectly-balanced 82/84 where minimum (65%) is 56/56 and 100% is 86/86

It is dead quiet when the CD player is paused and has excellent frequency response

new in box GE 5AM8 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box RCA 12AW6 tubes tested to spec on our Paul Hart-calibrated TV7/U

Raytheon 0Z4 OZ4 Vacuum Tube Valve NOS NIB Christopher This new old stock-testing SvetlanaThis Raytheon 0Z4 regulator tube tested to spec in our Paul Hart calibrated TV7 U tube tester. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONONIAN 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 IT.