some experimental 1.2V supply designs + rnd. osc. variant

Originally designed for 3-5V operation , also studied for 1.2V
as with the 555 --  the basic operating mode's to generate low duty pulses -- economizing the battery

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 Hi precision supply -- preserving near ® precision and with added current limit

Simple not limited 1.2V linear voltage regulator

the Op Amp variant of the above " Hi precision supply" without current limiting
-- the design has a "new" type of adjustable voltage reference that has not especially been optimized nor tested for varying operating conditions !!! (i just needed one and simple here !fast (as in common))

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+ some more : update 2017-02-13 (1-st time to break the ±1µV error !?)

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[Eop]