You mean something like this:
http://www.dailymotion.com/threeneurons#video=x148ak5

To get rid of two adjacent transistors being on at the same time, make sure 
that only an "odd" or "even" cathode is selected alternately. After a lot 
of convoluted pondering, I went back to the something that looks like the 
original Russian drive circuit:

<https://lh6.googleusercontent.com/-fRMqoBWKmsI/Ui2A0zX5cXI/AAAAAAAAMFI/Op7U5w_6Xms/s1600/A107_Nix_Dvr.gif>
Get rid of all the isolating diodes, and connect the odd cathodes to one 
half, of the flip flop, and the even cathodes, to the other half. Insert 
the nixie driving transistors in each cathode leg. LEDs are also inserted 
to show the current paths.

On Sunday, September 8, 2013 10:54:49 AM UTC-7, Dekatron42 wrote:
>
> Nice that you could adjust it to pass current on two cathodes.
>  
> To be able to build a nice clock with these, where each cathode drive a 
> transistor which drives the Nixie, only one cathode should be struck at the 
> same time. I did not do any tests on whether this was possible with the 
> A-107 or A-109. I could only get the A-108 to strike one cathode at the 
> same time with my quick tests. Maybe some other parameter needs to be 
> adjusted for that to work, like guide bias voltage or other cathode circuit 
> load parameters.
>  
> /Martin
>
> On Thursday, 5 September 2013 17:04:11 UTC+2, threeneurons wrote:
>
>> Here's a better video of A107 circuit:
>>
>> http://www.dailymotion.com/video/x148ak5_a107-selector-demo-2_tech
>>
>> I did add a 200K resistor in the anode leg, and adjusted it so only 2 
>> cathodes pass current, at any time. 
>>
>

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