Unijunction transistor sequential timer (CB21400E)

This circuit was found in Motorola documentation from 1968. Transistors can be modern equivalents, just like SCRs.

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Variable Power Source 1.2V - 25V x 3 A (CB13012E)
The power supply shown in the figure provides output voltages in the range of 1.2 to 25 V with...
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