Re: TI-H: Headphones

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Headphones
From: Greg Hill <gregh@xmission.com>
Date: Thu, 18 Feb 1999 19:34:15 -0700 (Mountain Standard Time)
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: ti-hardware@lists.ticalc.org
In-Reply-To: <36CCAEDB.563A8C43@electricstoat.com>
Reply-To: ti-hardware@lists.ticalc.org

If you wanted to have a variable output (ie, drive a lamp) based on the
input signal, an op-amp would be a likely candidate. To have something
switch on at a certain voltage, an op-amp circuit feeding into some zener
diode arrangement would do the trick.

On Thu, 18 Feb 1999, Jon Mullen wrote:

> But, I mean, say I wanted to power a lightbulb based on how loud the
> stuff coming out of the walkman is, or if I wanted to have something
> activate based on if the volume is past than a certain point.  What
> would I do?

-- 
Greg Hill
greg-hill@bigfoot.com
www.comports.com/link

References:

Re: TI-H: Headphones

From: Jon Mullen <mullen@electricstoat.com>

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