[prev in list] [next in list] [prev in thread] [next in thread] 

List:       basslist
Subject:    Re: Resistive damping of DVC drivers with a pot across one coil
From:       "Ron E" <rennenga () uswest ! net>
Date:       2000-11-30 0:02:34
[Download RAW message or body]

Using the outside ones would give you a big, non-variable resistor.

You could use the middle and one of the outside ones, but I think it is
better to solder the middle one to one of the outside ones so that there are
only two terminals.

A pot looks like

 +------1
 |
 /
 \
 /<-----2  Terminal 2 is the wiper
 \
 /
 \
 |
 +------3

Which terminal to solder to the wiper depends on the taper and whether you
want the resistance to increase or decrease when turning the pot clockwise.

I have an Excel 97 spreadsheet which can predict the resulting Q of a
resistively damped DVC speaker if you (or anyone else) want it.

Regards,
Ron


----- Original Message -----
From: "Grant Watts Kahn" <gawkahn@mediaone.net>
To: "Bass List" <bass@lists.cc.utexas.edu>
Sent: Wednesday, November 29, 2000 8:41 AM
Subject: Resistive damping of DVC drivers with a pot across one coil


> OK, this is another electronics newbie question:
>
> The pots have 3 tabs.  I have 2 places to connect them to the driver (the
+
> and - posts of the second vc).  To which tabs on the pots do I hook the
> wires?  I assume it's the outside 2, leaving the middle one open?
>
> (I'd clip probes to 'em and see how they vary when I turn the shaft, but
I'm
> at work -- busily building a sub in my head instead of being
productive....)

[prev in list] [next in list] [prev in thread] [next in thread]