I shoved an extra large wirewound in there, so I wouldn't blow another resistor. It blew 1/4W carbon films in only a few seconds of operation.
The resistor could be placed in the capacitor leg. I don't see a difference either way. It is needed to limit the discharge current, if only to stretch the pulse length. Pin 5 is ground just to make the flash rate more uniform. One of the other grids is tied to +450V, thru a 10M resistor as a "keep alive" primer, so a little gas is always ionized. Also stabilizes the flash rate. That "unreferenced diode" is an LED. Flashes once per revolution. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
