5 US-Made 4CB6 Vacuum Tubes Valves NOS NIB Lot Of Five Ken-Rad Gebraucht Here's a new old box

Here's a new old box

Tube One measured 44 while Tube Two measured 48 where minimum (65%) is 32 and 100% is 49

It 66-26 date codes and steel or tantalum plates

60 and 63 where minimum (65%) is 40 and 100% is 62

Transconductance measured 65/34

5 US-Made 4CB6 Vacuum Tubes Valves NOS NIB Lot Of Five Ken-Rad Gebraucht Here's a new old boxThese five new old stock, new in box US made 4CB6 tubes tested to spec on our Paul Hart calibrated TV7 U. 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