Lot of 1pc. Fey-35 or FEY-35A same tubes.
I have for sale nice rare Rare photomultiplier tube  FEU-35 for Scintillator Geiger counter New Boxed! Has original Box
New,  boxed,
Will be packed well and shipped by air mail - with tracking number

Working temperature range: -60...+50 ºC (-76...+122 ºF)
Sensitivity range: 300...600 nm
Supply voltage: 1750V
Maximum average anode current: 50 uA
Integral sensitivity (at least): 30 uA/lm, usually 50...70 uA/lm.
Each tube has an individual datasheet with most of its parameters measured for this particular tube and written there.
Size including base and pins (Length x Diameter): 11.5 x 3 cm = 4.5 x 1.2 inch

Happy bidding.
Please take a look at photos - if you need some more pc. or have any questions -please send me a message.