[sdiy] Hollow low-pressure ladder filter

[Tim Ressel]

Yo,

My 6AL5s finally arrived. Tomorrow, neurons willing, I
will bang together a diode version of a ladder filter.
The advantage is: no high voltage. +/- 15V should be
enough to run it.

Now for the bad news: the 6AL5s are military tubes. So
any music mafe with this filter will come out sounding
like a march  ;-)

More 12AU7s and filament transformers are on the way
for the triode version. Or should I use pentodes to
satisfy those ultra-linear purists out there?

--TR


__________________________________________________
Do You Yahoo!?
Yahoo! Health - your guide to health and wellness
http://health.yahoo.com