Hi - this doesn't look much like the original Instructable - I'm trying to understand your lin/log converter - the 555 as shown should produce about a 4.6kHz spike with an exponential decay curve - do you have a reference for how this is supposed to work, end-to-end?
Regarding the PSU - apologies for not replying sooner - if its the one from my web site, you really need to use the component values I recommend and to read the instructions carefully, especially those relating to layout - the output capacitor in particular needs to be SMALL and low ESR. A big capacitor, e.g. 100uF, will cause problems... Nick -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/15e8a26c-c225-4115-ad27-bc53911fad80%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
