The OG-8 dekatron is not hard to drive, just use the circuit diagram in the datasheet and the other parameters found in the datasheet and they will step just fine. However some of the OG-8 dekatrons that are for sale are partially outgassed so they either won't step properly or sometimes at higher voltages. I haven't bought any OG-8 dekatrons recently but last time I did so, maybe some 4 or 5 years ago they all worked fine even though other people were commenting on them being hard to get to work. I was sent one such troublesome tube from a friend and it was definitely outgassed as it needed higher voltages to strike and it didn't step as easily as mine did, it also had a very different glow. I have read of the same problem, and also experienced, with other high speed Russian dekatrons and in my case it was all due to them being outgassed. The sellers I bought from then immediately refunded me for the outgassed ones, and I bought some more to make sure that I had properly working ones. These problems mostly occurred with the A-106 dekatrons.
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