Create a schematic for Schmitt trigger oscillator 

libSymbols:
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- Comparator:LM393
- Device:C
- Device:D
- Device:L
- Device:Q_NPN_CBE
- Device:R_US
- power:+3.3V
- power:+5V
- power:GND
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    angle: 0
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noConnects: []
busEntries: []
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  points:
  - x: 132.08
    y: 121.92
  - x: 132.08
    y: 124.46
- type: wire
  points:
  - x: 231.14
    y: 109.22
  - x: 231.14
    y: 114.3
- type: wire
  points:
  - x: 63.5
    y: 101.6
  - x: 71.12
    y: 101.6
- type: wire
  points:
  - x: 88.9
    y: 73.66
  - x: 88.9
    y: 76.2
- type: wire
  points:
  - x: 114.3
    y: 73.66
  - x: 121.92
    y: 73.66
globalLabels: []
sheetInstances: []
