I know it's possible to create an audible square wave generator using a 4093 or a 7400 by connecting one input to high and the other to ground using a capacitor, then feeding the output back into the grounded input through a resistor.
Not having access to either of these, I made a (working) TTL NAND gate using c2240 transistors running on 6v. I can't, however, make it oscillate.
I assumed it would work because the logic function is identical to that of a 4093, though the IC's design is much more intricate, but I just can't seem to make it work.
When connected to an amplifier, all I hear is uneven crackling. Does the malfunction have something to do with the 7400/4093's totem-pole output (and my circuit's lack of one), my 6v power source, or am I just flat out wrong in my design?
Not having access to either of these, I made a (working) TTL NAND gate using c2240 transistors running on 6v. I can't, however, make it oscillate.
I assumed it would work because the logic function is identical to that of a 4093, though the IC's design is much more intricate, but I just can't seem to make it work.
When connected to an amplifier, all I hear is uneven crackling. Does the malfunction have something to do with the 7400/4093's totem-pole output (and my circuit's lack of one), my 6v power source, or am I just flat out wrong in my design?
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