My Fluke manual says NE-2U. Another place says A9A-1 (which is a NE-2E) Somebody built a digital clock that used only neon lamps for the logic. To get it to work reliably, he had to "bias" the thing by shining a blue LED on it... wish I could find the link... 'twas rather neat. _________________________________________________________________ Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID27925::T:WLMTAGL:ON:WL:en-US:WM_HMP:032010_1

Mark wrote: >Somebody built a digital clock that used only neon lamps for the >logic. To get it to work reliably, he had to "bias" the thing by >shining a blue LED on it... wish I could find the link... 'twas rather neat. Perhaps PA3FWM? http://www.vf.utwente.nl/~ptdeboer/ham/neonclock/ Best regards, Charles