[sdiy] Reverb opinions, please

[john mahoney]

Seems like a compression driver (for a horn midrange or tweeter) would work
well with a spring, if you could attach the spring to the diaphragm.

And how about a piezo driver? Cheap, rugged, and you can epoxy* something
directly to it. The bass response is poor but might be okay if you keep the
signal level fairly low.

In theory, you can use a piezo on each end -- one as driver, the other as
pickup. Frequency response anomolies could be accentuated, though, so this
may be a Very Bad Idea (TM).
--
john (just brainstorming)

* Epoxy always has the right thread.


----- Original Message ----- 
From: "The Peasant" <ecircuit at telus.net>
To: "R. D. Davis" <rdd at rddavis.org>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Thursday, May 20, 2004 11:24 AM
Subject: Re: [sdiy] Reverb opinions, please


> I have found that dc motors work quite well in driving slinkies, with a
little
> modification. Speakers work well also, but you need to do some fancy
mechanical
> work with them if you want torsional spring movement. However, for
pick-ups,
> both speakers and low voltage dc motors are a bit too low of an impedance
for
> optimum results. I was thinking about rewinding a small dc motor with much
> smaller gauge wire for higher impedance and gain, but I have not yet
attempted
> this very precise and demanding task. If you haven't seen it yet, you may
want
> to check my slinky reverb page here:
>
> http://www.electronicpeasant.com/projects/springs/springs.html
>
> Take care,
> Doug
> ______________________
> The Electronic Peasant
>
> www.electronicpeasant.com