Electronics > Projects, Designs, and Technical Stuff
Old Flip Flop circuit
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@rt:
Hi :)

I went to make another of these, and it occurred to me that it’s more than a flip-flop.
The bottom two transistors don’t even have to be there, and I have built the circuit without them.

I’ve simply pulled the bases of the 2N3904 low with the switches.
Does anyone know why they are there? The capacitor coupling would prevent the 2N3904 being left on,
and maybe being burned out, but the switches could be done the same straight to the bases via series capacitors.
Cheers.
@rt:
Messy drawing I know (modified original), but the one I just did looks more like this:
sahko123:
whats the point if the iron core inductors? filtering?
@rt:
It’s non volatile if square loop ferrite cores are used, but you could ignore them. If they are omitted, it’s still a flip-flop.
sahko123:
may i ask their purpose?

also i think the transistors are there to increase switching bandwidth by rapidly drawing on the current of the alternate side(just a wild guess).
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