Groups > sci.electronics.design > #447552

How to increase the volume of a metronome?

From	Don Kuenz <g@crcomp.net>
Newsgroups	sci.electronics.design
Subject	How to increase the volume of a metronome?
Date	2017-02-13 15:28 +0000
Organization	A noiseless patient Spider
Message-ID	<20170213a@crcomp.net> (permalink)

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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 Tempo1/Tempo2 resistor pair signifies a pot as does the Vol1/Vol2
pair. Is there a better way to capture pots with LTSpice?

----------------------------------------------------------------------

Version 4
SHEET 1 960 936
WIRE -384 96 -512 96
WIRE -288 96 -384 96
WIRE 64 96 -288 96
WIRE 112 96 64 96
WIRE 304 96 112 96
WIRE 112 112 112 96
WIRE -384 128 -384 96
WIRE -288 192 -288 96
WIRE -240 192 -288 192
WIRE 112 192 112 176
WIRE 112 192 -16 192
WIRE 112 224 112 192
WIRE -384 256 -384 208
WIRE -240 256 -384 256
WIRE 16 256 -16 256
WIRE -384 304 -384 256
WIRE -240 320 -320 320
WIRE 176 320 -16 320
WIRE 176 336 176 320
WIRE 304 368 304 96
WIRE -240 384 -288 384
WIRE 64 384 64 96
WIRE 64 384 -16 384
WIRE 240 416 176 416
WIRE -384 448 -384 384
WIRE -320 448 -320 320
WIRE -320 448 -384 448
WIRE 16 448 16 256
WIRE 16 448 -320 448
WIRE -512 464 -512 96
WIRE -384 480 -384 448
WIRE -288 480 -288 384
WIRE 304 496 304 464
WIRE 176 512 176 496
WIRE -512 592 -512 544
WIRE -384 592 -384 544
WIRE -384 592 -512 592
WIRE -288 592 -288 544
WIRE -288 592 -384 592
WIRE 304 592 304 576
WIRE -512 640 -512 592
FLAG -512 640 0
FLAG 112 224 0
FLAG 176 512 0
FLAG 304 592 0
SYMBOL Misc\\NE555 -128 288 M0
SYMATTR InstName U1
SYMBOL res -368 112 M0
SYMATTR InstName Tempo1
SYMATTR Value 125k
SYMBOL res -368 288 M0
WINDOW 0 36 43 Left 2
WINDOW 3 49 74 Left 2
SYMATTR InstName Tempo2
SYMATTR Value 125k
SYMBOL cap -368 480 M0
WINDOW 0 -23 6 Left 2
WINDOW 3 -41 58 Left 2
SYMATTR InstName C2
SYMATTR Value 2.2\xc2\xb5F
SYMBOL res 160 320 R0
WINDOW 0 -92 42 Left 2
WINDOW 3 -88 69 Left 2
SYMATTR InstName Vol1
SYMATTR Value 500
SYMBOL Misc\\battery -512 448 R0
WINDOW 0 12 95 Left 2
WINDOW 3 17 9 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL cap -304 480 R0
SYMATTR InstName C3
SYMATTR Value 0.1nF
SYMBOL cap 96 112 R0
SYMATTR InstName C4
SYMATTR Value 100\xc2\xb5F
SYMBOL res 160 400 R0
WINDOW 0 -86 47 Left 2
WINDOW 3 -87 76 Left 2
SYMATTR InstName Vol2
SYMATTR Value 500
SYMBOL npn 240 368 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL res 288 480 R0
SYMATTR InstName Speaker
SYMATTR Value 8
TEXT -392 616 Right 2 !.tran 1 uic
TEXT -8 176 Left 2 ;1
TEXT -8 240 Left 2 ;2
TEXT -8 304 Left 2 ;3
TEXT -8 360 Left 2 ;4
TEXT -296 368 Left 2 ;5
TEXT -296 304 Left 2 ;6
TEXT -296 240 Left 2 ;7
TEXT -296 176 Left 2 ;8

----------------------------------------------------------------------

Thank you,

--
Don Kuenz KB7RPU

Nations are destroyed, or flourish, in proportion as the poetry,
painting, and music are destroyed or flourish! - William Blake

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Thread

How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-13 15:28 +0000
  Re: How to increase the volume of a metronome? Tim Wescott <tim@seemywebsite.com> - 2017-02-13 11:15 -0600
    Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-13 19:28 +0000
  Re: How to increase the volume of a metronome? Don Y <blockedofcourse@foo.invalid> - 2017-02-13 11:21 -0700
    Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-13 19:28 +0000
      Re: How to increase the volume of a metronome? Don Y <blockedofcourse@foo.invalid> - 2017-02-13 13:00 -0700
  Re: How to increase the volume of a metronome? bitrex <bitrex@de.lete.earthlink.net> - 2017-02-13 13:42 -0500
    Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-13 19:58 +0000
  Re: How to increase the volume of a metronome? Tim Wescott <seemywebsite@myfooter.really> - 2017-02-13 12:43 -0600
    Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-13 19:47 +0000
    Re: How to increase the volume of a metronome? bitrex <bitrex@de.lete.earthlink.net> - 2017-02-13 18:05 -0500
  Re: How to increase the volume of a metronome? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-02-13 21:30 +0200
    Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-13 19:54 +0000
      Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-23 05:54 +0000
        Re: How to increase the volume of a metronome? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-02-23 16:43 +0200
          Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-23 15:23 +0000
            Re: How to increase the volume of a metronome? tabbypurr@gmail.com - 2017-02-23 16:29 -0800
              Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-24 02:15 +0000
                Re: How to increase the volume of a metronome? tabbypurr@gmail.com - 2017-02-24 01:49 -0800
                Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-24 14:56 +0000
                Re: How to increase the volume of a metronome? tabbypurr@gmail.com - 2017-02-24 07:21 -0800
                Re: How to increase the volume of a metronome? rickman <gnuarm@gmail.com> - 2017-02-24 14:11 -0500
                Re: How to increase the volume of a metronome? rickman <gnuarm@gmail.com> - 2017-02-24 15:28 -0500
                Re: How to increase the volume of a metronome? tabbypurr@gmail.com - 2017-02-24 12:37 -0800
                Re: How to increase the volume of a metronome? rickman <gnuarm@gmail.com> - 2017-02-24 15:46 -0500
                Re: How to increase the volume of a metronome? tabbypurr@gmail.com - 2017-02-24 13:23 -0800
                Re: How to increase the volume of a metronome? rickman <gnuarm@gmail.com> - 2017-02-24 17:49 -0500
                Re: How to increase the volume of a metronome? Don Kuenz <g@crcomp.net> - 2017-02-25 03:43 +0000
                Re: How to increase the volume of a metronome? tabbypurr@gmail.com - 2017-02-24 23:03 -0800
                Re: How to increase the volume of a metronome? rickman <gnuarm@gmail.com> - 2017-02-25 03:20 -0500
  Re: How to increase the volume of a metronome? Jasen Betts <jasen@xnet.co.nz> - 2017-02-15 11:11 +0000

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