Thanks for explaining! I'm more used to using the 2D21 in similar circuits and also for pulsed relay driving, there a choke and capacitor is usually used for the self extinguishing circuit.
/Martin On 17 Dec, 19:06, threeneurons <[email protected]> wrote: > 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.
