5 US-Made 4CB6 Vacuum Tubes Valves NOS NIB Lot Of Five Ken-Rad Gebraucht

5 US-Made 4CB6 Vacuum Tubes Valves NOS NIB Lot Of Five Ken-Rad GebrauchtThese 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

It 66-26 date codes and steel or tantalum plates

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

Here's a new old box

I have played them in my Radio Craftsmen RC-2 monoblocks with adapters (not included) and they sound outstanding

They tested as follows: 60

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

Tube Ten: 44/1800

I have played them (with adapters

these are the only Coke bottle-shape 6H6s I have seen in 25 years in the tube business

Tube One measured 1380 micromhos and drew 10

new in box Raytheon 10KR8 tubes tested to spec on our TV7/U

Transconductance measured 65/34