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I added r5/r6 becouse circuitry works before only when voltage was 0.5-1V. i though that when one capacitor rise to voltage of VBE than other transistor turn on. I got saw tooth wave not square wave.
I am having problems with circuit, that I designed.
** R5=R6 Are calculated for hfe=306 measured. Designed for 20V -> 680 ohm -> U/R -> 20/680 = 0,0294A. Thats what transistor should turn on. With hfe 306 -> 0,0294/306 -> 0,000096 A. Thats minimal current for turn it ON. So to bypass turning...
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