Greetz, Since my emphasis with neon circuits lean towards musical synthesis I am always on the hunt for interesting counting circuits. I often will circuit bend them a bit to be more random, and often will include potentiometers to allow me to mess up their timing. Its the antithesis of accuracy or stability, but I have a great deal of fun with it.
I thought I would take a stab at the enclosed circuit. I built up the capacitor network, included the lamps (NE-2's) and one of its two buses. I had six 470k resistors. I have an alternate idea for the two transistor circuit shown, so I was simply working on the counting portion. The article describes it as a "do nothing circuit" and except for a few variations thats sadly the case. The lamps do not dance. Once one latches it remains lit. Slightly increasing or decreasing the supply voltage will cause other lamps to fire once. I tried a pulsed supply through an NE-2 LFO element, a bit of joy but nowhere near a range of options. I've also tried a variety of resistor values such as shown, still no cycling joy. I am now wondering if my choice of non-polarized caps is to blame ? Would a diode in series with each cap help matters ? I lacked 0.25's but had 0.22's as they seemed close enough to at least demonstrate the circuit. Or... as an alternative... if the cap matrix shown were diodes, and instead have a cap parallel to the lamp to pulse it, might that yield some random dancing joy ? Momentarily stumped. But if there are folks who understand counting circuits, that would be here. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAPsrQ%2BEoDGSjYqBytFe0B3_gaCO2gjiJehhqghTriUm1MLa%2BOQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
