ORIGINAL MESSAGE: On Fri, 26 Nov 2010 14:21:24 -0600, donroden at hiwaay.net wrote: >What does the brain trust think about using a neon transformer without >the diodes and capacitors ? AC vs DC ? REPLY: Depends on what you're testing. When there is a relatively large amount of capacitance such as between windings on a transformer, DC is best. 73, Bill W6WRT