Bootstrapped balancing acts
« on: May 14, 2006, 07:30:30 AM »
Some of you have probably already read this article.
"Relaxing on the axis of the wheel of life."

Bootstrapped balancing acts
« Reply #1 on: May 14, 2006, 10:00:58 AM »
If you don't want to build it you can get one of these.. Available from for $4.93 USD. Designed by Bill using this bootstrap method.




Bootstrapped balancing acts
« Reply #2 on: May 14, 2006, 11:44:26 AM »
Ah, interesting.

Thanks elco, that might be worth checking out.
I could use some VCA´s to...
Anybody got any experience with this circuit?
"Relaxing on the axis of the wheel of life."


Bootstrapped balancing acts
« Reply #3 on: May 15, 2006, 06:25:35 PM »
i have built one of these for a uni assignment but i'm afraid i can't give u any usefull information other than that the low frequency rolled off a bit higher than i expected it too. i summised that it was due my difficulty in calculating the input impedences with the seemingly quite complicated RFI suppression (this was my first ever attempt to build something and i certainly wasn't the sharpest electronics mind back then to say the least!!!). i used a voltage follower as the bootstrap servo but i seem to remember reading that a bit less than unity is preferable.

i've always meant to revisit it now that i'm a tiny bit more knowledgeable(posibly using 3 DOAs with DC servos a la Massenburg plus the bootsptrap servo making a ludicrous total of four servo's per pre!!).

i'm still not the sharpest electronics mind tho so it's on a back burner until my little brain can get a firmer grip on it. i'd be very interested to know your results if you build one though.



Related Topics

  Subject / Started by Replies Last post
15 Replies
Last post May 21, 2008, 01:01:52 AM
by jeffrey_burr
16 Replies
Last post August 16, 2011, 11:37:42 AM
by pucho812
7 Replies
Last post September 13, 2012, 04:50:36 AM
by j.frad
20 Replies
Last post May 07, 2020, 08:03:34 AM
by iturnknobs