Prelab 3, Exercise 6: 1kHz Square Wave Oscillator
*-------------------------------------------------------------------------
* EE122 Prelab 3
* Exercise 6: 1kHz Square Wave Oscillator
*-------------------------------------------------------------------------

.include 'UA741_model'

* You fill in the ??? parameters

* example UA741 usage -> X1 in+ in- cc+ cc- out UA741
X1 V+ V- cc+ cc- Out UA741
Vplus cc+ 0 12V
Vminus 0 cc- 12V
R2 Out V+ ???
R1 V+ 0 ???
R3 V- Out ???
C1 V- 0 0.047uF
Istart V- 0 pwl(0,1mA 10us,0mA)

*-------------------
* Transient Response
*-------------------
.tran 50us 10ms

*--------
* Options
*--------
.op
.option post

.end