Thanks Terry, and everyone else for your responses. Looks like the Fisher Biotech FB-650 Electrophoresis Supply will do the trick... 0-6kv, 0-350ma adjustable. I've found one for under $100.
Rich K4REA :-) On Thursday, April 4, 2019 at 7:48:31 PM UTC-4, Terry Bowman wrote: > > > On Apr 4, 2019, at 9:59 AM, Nick <[email protected] <javascript:>> > wrote: > > These need DC at a couple of thousand volts - I've seen them run of much > higher voltages via an induction coil, e.g. a Ruhmkorff coil which can > produce 10KV & a lot higher (over 100KV) > > > I power mine with one of these: > > > https://www.sci-supply.com/High-Voltage-Power-Supply-Induction-Coil-25KV-p/ss3148-25.htm > > > Crank up the voltage just high enough to get the paddle wheel to move. > This reduces wear on the cathodes and there's no point in generating > unwanted X-rays. Reversing the polarity makes the paddle wheel change > direction. > > > Here's a magnetic deflection tube in action on my blog: > > https://www.astarcloseup.com/2011/08/crookes-tube-first-test.html > > > Ignore the huge DC power supply in the pictures. I used it briefly until I > bought some D battery holders. > > > Terry Bowman, KA4HJH > "The Mac Doctor" > > Q: Should car stereo speakers be pointed to the rear for more thrust or up > for more traction? > > A. On long trips, the 20- to 30% improvement in gas mileage you might get > with speakers pointing to the rear is certainly worthwhile. On the other > hand, if you drive on snow or ice, the extra traction of speakers pointing > upward gives you added control. > > Don Lancaster > > -- 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 [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5431eb82-01a7-4d08-963b-418efb3d6e70%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
