OT or slighty so, nice projects in Elektor magazine

[Nasse]

Received post today. Check http://www.elektor.de/   and look for new mini project: A re-chargeable 9V battery from supercap and some electronics. Maybe next month it is in english at www.elektor-electronics.co.uk

Some article about low anode voltage tube things, tube headphone amp at 12V, next month low power amp with low voltage and EL84
author link: www.b-kainka.de
nice simple circuits but in german

[gez]

Thanks!  The tube projects are nice (simple enough for me anyway).

There was a nice circuit idea in the last issue (I think it was in Elektor - could be wrong as I scribbled the schematic onto my shopping list in Smiths).  It was for a variable power supply and was simplicity itself.  All it entailed was connecting up a pot at the output of a fixed micropower regulator and the wiper connected to the non-inverting input of a suitable op-amp.  

I've been using a simplified version with the wiper connected to the gate of a Mosfet (source connects to circuit).  One of those ideas that's so simple I can't understand why I didn't think of it!

[Peter Snowberg]

Very nice!, thank you!

The Google language Tools will translate the page for us non-German speakers.



http://translate.google.com/translate?u=http%3A%2F%2Fwww.elektor.de%2F&langpair=de%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools