Nixie driver chip question

[LEON WENDLER]

you can download the old TI and FAIRCHILD and MOTOROLA
data books for free they include this chip. tells you
everthing. listed on the free book page of website. 
www.tech-systems-labs.com
leon @ technology systems


--- "TChesek at Epix.Net" <tchesek at EPIX.NET> wrote:

> I have three Heathkit frequency counters, IB-1100,
> IB-1101 & IB-1103 plus the SB-650 Digital Display
> used with my HW-100 and they all use 7441B driver
> chips for the Nixie tubes. The 7441B's are scarce or
> almost non-existent and since they can be a high
> failure item I placed an order for the Russian 
> K155ID1 which is supposed to be a full equivalent to
> the 74141 chip which I thought to be a replacement
> to the 7441B. I came across a website listing truth
> tables for the 7441, 7441A, 7441B, 74141 chips and
> there are differences. Is there anyone who has used
> a substitution for the 7441B or knows if the
> differences in these chips have any impact on these
> counters?
> 
> 73 & tnx,
> Tom K3TVC
> 
>
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