[sdiy] A simple 12AX7 vacuum tube tester schematic..

[Roy J. Tellason]

On Tuesday 15 January 2008 19:56, René Schmitz wrote:
> Hello JP,
>
> Here are some schematics of commercial units as well as some homebrew
> units.
>
> http://www.jogis-roehrenbude.de/Roe-Pruefer.htm
>
> Its in German, so maybe use babelfish.

Babelfish does indeed do a fine job of it,  it's still a little quirky but 
mostly quite readable.  From german-to-english the URL I ended up with is 
<http://babelfish.altavista.com/babelfish/trurl_pagecontent?lp=de_en&url=http%3A%2F%2Fwww.jogis-roehrenbude.de%2FRoe-Pruefer.htm>

Interesting site,  and there are some things in there I'd never have thought 
of doing,  like using nicads and an inverter (!) to power a tester rather 
than relying on line power,  for one example.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin