Testing Pseudo Capacitors

it turns out you can cook a lot of capacities out of bipolar triode

a descending list :: (also on the 1-st fig. below)

• connect E2E2C2C using bases as outputs or (equals) tie E&C together and merge B-s
• connect E2E & C2C using bases as outputs
• connect E2C & C2E using bases as outputs
• tie CB-s together and use as outputs merge by E-s
• tie EB-s together and use as outputs merge by C-s

(PS! -- the shown voltage tuning takes up to about a second to settle !!!)

+ a simple osc. test ::

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[Eop]

about using BjT-s as capacitors --and-- diodes

bugs found -- see update below

a past experiment to verify the speed of different transistor's diode configurations ...

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! Update ::

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[Eop]