Hi. can somone explain me in simple word what is the job of CA3086 in the circuit? what is the job of the zener diode in this model?

also i will glad if somone can explain me what is the job of the capcitor that connect in leg 1 - 8 in CA3130 component ?

i found this article
http://www.eleccircuit.com/circuit-power-supply-regulator-01-50v-1a-by-ic-ca3130-ca3086-2n3055/
but my english is not that good
tnx

 

Hello,

You already have a thread for this:
help on simulation on pspice

Bertus