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oscilloscope - Using CD4093 as Schmitt trigger oscillator. How to measure high and low trigger thresholds? - Electrical Engineering Stack Exchange
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nand - More Fun with the CD4093 IC as Schmitt Trigger Oscillator. Any practical difference between circuit version with "Enable" pin and Without? - Electrical Engineering Stack Exchange
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Classic 4093 Schmitt trigger "gated oscillator" trouble - Logic forum - Logic - TI E2E support forums
![oscilloscope - Using CD4093 as Schmitt trigger oscillator. How to measure high and low trigger thresholds? - Electrical Engineering Stack Exchange oscilloscope - Using CD4093 as Schmitt trigger oscillator. How to measure high and low trigger thresholds? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/hHbtd.jpg)