This helps greatly.Yes, you are overdriving the base.
For R1, use 220k.
For R2, use 47k.
That's still a considerable amount of overkill, but it'll work just fine for both of them.
For the DP, use 360 Ohms for R3.
For the segments, use 120 Ohms for R3.
The Ib = Ic/10 is more applicable to a single transistor stage. What you have here is a darlington pair. That means that the effective beta is the product of the beta of the two transistor. In this case you would be better served if you think in terms of Ib = Ic/100.....
Lets see, how about the theory of Ib being 1/10th of Ic? I'll investigate that and see where it leads me, but, will hold on to these values Sarge has offered as biblical literature, as always, he's a wealth of knowledge.
Tx's guys..........
Oxbo
.......
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