[Constant (David)]

I have a number of Philips 92AV Ceasium Antimony tubes in unused condition. I believe these tubes were purchased in the late 60's (an educated guess).
Unlike most vacuum tubes these tubes are still in use today as they remain amoungst the most sensitive of all light detecting devices.
The device is on sale in the UK @ 40 Euros
Including postage (Aust only) the item is yours for $40 $Aust
I have also listed one of the tubes @ auction on EBay with a starting price of $26 Aust.
In addition I have a commercial carton x5 units.

Per unit inc Aust Post delivery, per unit @ $40 Aust