Posted to rec.audio.tubes
|
|
phase shift audio oscillator 5Hz to 100kHz++
"Phil Allison"
** See this pdf link for more info that you ever wanted on the 6AM6 / EF91
http://www.aireradio.org/riviste_est...ola%20EF91.pdf
Really is worth a look, includes internal pics, magazine projects and
facts galore.
** Same article, much better presented:
http://www.r-type.org/articles/art-148.htm
http://www.r-type.org/articles/art148p.jpg
|