Clean Square Wave Astable Multivibrator Oscillator

Just another idea: http://everycircuit.com/circuit/5726936794660864

You should really use bigger capacitors. On this capacitance, you have to calculate many more things. Even the position of the wires matter, because they change the capacity.

Thanks for your advice guys, I appreciate them! Yeah I can keep those resistor ratios the same while adding in larger capacitors to avoid that problem.

Also Lenzruiz I added another diode to Q2 transistor base as there was a voltage difference from Q1 and Q2 waves in your example although the signal was much cleaner on Q2 in your example, it would be useful to use that as a half wave oscillator in your experiment.

Just updated with new cap and resistor values

Thank you for your feedback patgh2407, much appreciated...👍

Hello, one other way to improve on this circuit - to make the waveform neater, is adding simple transistor invertors to its opposite outputs.

But, one problem is that, every circuit does seam not fast enough to run or simulate such a circuit. I used LT Spice. You could try it too, if you have the software.

Thanks for the advice Laadi, I'm actually experimenting a few different oscillators circuits such as this one with a BJT and MOSFET invertor with real components, also I tested this exact same circuit with my Oscilloscope and the frequency wasn't nearly as clean as this simulator shows, but I'll post the results and change the component values on here once I get a clean square wave with real components so others can learn from here.

Ok just updated this circuit again and I found by using bigger caps and smaller resistors I was able to get a much more stable circuit out of this in the real world of testing. Some important things to consider are the BJT saturation currents on each of the terminals, if the base terminal in particular doesn't get enough current surge from the caps then the circuit will only operate at around 0.2 - 0.3 V with a dirty frequency as the capacitor is discharging small amounts of volts and current at a time therefore it is only partially switching on the transistor at a low voltage and current signal. Be aware this simulator is not always 100% accurate and always test these circuits in the real world if you have an Oscilloscope with you to get the true results.