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From: Don Kuenz <g@crcomp.net>
Newsgroups: sci.electronics.design
Subject: Re: How to increase the volume of a metronome?
Date: Mon, 13 Feb 2017 19:54:22 -0000 (UTC)
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Tauno Voipio <tauno.voipio@notused.fi.invalid> wrote:
> On 13.2.17 17:28, Don Kuenz wrote:
>> Greetings,
>> 
>> Comments are sought on additional circuitry to increase the speaker
>> volume of the circuit shown between the lines. Comments on circuit
>> simplifications are also sought. (Maybe a 555 with a couple of pots is
>> as simple as it gets sometimes?)
>
> 
> The canonical response is LM386.
> 
> It is not sensible to drive a speaker with a
> follower here, it will eat your battery in
> no time, and the speaker does not like the
> DC bias on it.

Good call! You just exterminated the battery eater in my subconscience.

Thank you,

--
Don Kuenz KB7RPU