Astable Multivibrator X3

Can you make a tube-based multivubrator for use as synthesizer for me iCore?

transistor?

Sure it is possible :-) just look how the output is connected in common emiter amp to give inverted output voltage. U connected led diodes so they act as hooked to non-inverting one. Simply use another output

Damn, why didn't I think of that? With the topology the way it is, no- but if you were to add another segment the LEDs will alternate (2 at a time). Odd number of segments = sequential -- even number segments = alternating. And you can have as many segments as you like..

Secuture > I don't understand , should i put the transistors before the LEDs ? I'm a begginer in electronics :)

No no just reconnect the leds. U must do this by removing led from positions they are now (in series connected to transistor) and connect led anode to collector and cathode through limiting resistance or not to ground (so they became parallel connected to transistor) those 150 ohm resistances above leds must not be touched. Thanks to this when transistor pass charges it can be done because it resistance drops to almost zero so colector point is also as whole transistor almost at zero ground (he change into conducting wire and as we know wire has zero voltage on it) then parallel conection is also at zero level and there is lack of voltage to drive parallel led but for series connection this short instead creates great path to conduct and full voltage lays themselfs on any element serially connected excite them and create current like now. Such parallel load hooked between collector and ground is used in common emiter amplifier topology and create inverting output compared to driving signal that's why i talking about it. Frequently it is hooked trough capacitor to create on other side of cap an AC voltage. As we not need AC this cap is not required and should be avoid.

Oh ! Now i understand !

Thanks a lot !