Xref: utzoo sci.electronics:13123 rec.ham-radio:22452 Path: utzoo!attcan!uunet!ogicse!zephyr.ens.tek.com!gvgpsa!gold!grege From: grege@gold.GVG.TEK.COM (Greg Ebert) Newsgroups: sci.electronics,rec.ham-radio Subject: Re: Has anyone made any homemade valves (tubes), semiconductors ... Message-ID: <1205@gold.GVG.TEK.COM> Date: 26 Jul 90 15:43:18 GMT References: <872@massey.ac.nz> Followup-To: sci.electronics Organization: Grass Valley Group, Grass Valley, CA Lines: 9 In article <872@massey.ac.nz> GMoretti@massey.ac.nz (Giovanni Moretti) writes: > >And how about batteries with household chemicals (ie not sulphuric) > I managed to get a voltage reading from a lemon - I used a penny (copper) for one electrode, and the meter probe for the other. It was under a volt. I prefer to power-up lemons and potatoes with 220 volts.....