I am selling 3 very rare tubes number 345 globes in this auction.

They are clearly engraved Cunningham CX 345.


I tested them on my TV-7U on the 45 settings: 45 is the minimum value. I tested for shorts and they all have passed.

They tested as follows: 

Cunningham: 70, 49, 40

The one that measured 40 (marked W 0 on top), I needed to re-solder the heater pins to get it to light up. So, since it is low anyway, bid accordingly.


Also, one base is slightly loose.


My TV-7U is for reference only, it does show when tubes are good or bad and can be used to match, but all tube testers use different parameters and yours may have different results.