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Re: Audio Generator or Function Generator? Which to get?

From Martin Brown <'''newspam'''@nezumi.demon.co.uk>
Newsgroups sci.electronics.design
Subject Re: Audio Generator or Function Generator? Which to get?
Date 2017-03-15 12:10 +0000
Organization Aioe.org NNTP Server
Message-ID <oabavn$18uf$3@gioia.aioe.org> (permalink)
References <vaicccta9pdjea9abbc1074l06705f6677@4ax.com> <oa5out$n06$1@gonzo.alcatraz> <oa8cno$1c3m$1@gioia.aioe.org> <8fdec2a5-4ebc-4c77-a1af-c35826ba72a0@googlegroups.com>

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On 14/03/2017 13:58, tabbypurr@gmail.com wrote:
> On Tuesday, 14 March 2017 09:22:05 UTC, Martin Brown  wrote:
>
>> There used to be old school analogue function generator chips that
>> made a triangle wave and then applied diode shaping to get a
>> pseudo-sine wave. HP made one design implementation that was
>> surprisingly good. Intersils 8038 was the poor mans alternative for
>> DIY.
>>
>> http://www.intersil.com/content/dam/intersil/documents/icl8/icl8038.pdf
>
>>
> I built one of those decades ago. What a car crash. The wave forms
> were hopeless. I don't remember the details to know why, I presume
> the problem was the 8038 though.

It was never anything like as good as a Wein bridge sine wave but it was 
good for about 0.5% THD if you trimmed it properly. I suspect 
manufacturing tolerances made it inconsistent batch to batch.

Cute chip in its day, but that was a long time ago.

-- 
Regards,
Martin Brown

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Thread

Audio Generator or Function Generator? Which to get? oldschool@tubes.com - 2017-03-13 02:26 -0600
  Re: Audio Generator or Function Generator? Which to get? Colin Horsley <horsley-spam@westnet.com.au> - 2017-03-13 20:20 +1100
  Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-13 02:20 -0700
  Re: Audio Generator or Function Generator? Which to get? Jasen Betts <jasen@xnet.co.nz> - 2017-03-13 09:32 +0000
    Re: Audio Generator or Function Generator? Which to get? Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-03-14 09:22 +0000
      Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-14 03:11 -0700
      Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-14 06:58 -0700
        Re: Audio Generator or Function Generator? Which to get? Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-03-15 12:10 +0000
          Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 05:39 -0700
            Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-15 17:41 -0700
              Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 19:13 -0700
                Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-15 19:23 -0700
                Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 19:32 -0700
                Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-15 19:44 -0700
                Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 21:00 -0700
                Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-15 22:09 -0700
            Re: Audio Generator or Function Generator? Which to get? Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-03-16 10:09 +0000
            Re: Audio Generator or Function Generator? Which to get? "David Eather" <eather@tpg.com.au> - 2017-03-17 13:56 +1000
              Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-16 22:44 -0700
              Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-17 02:35 -0700
                Re: Audio Generator or Function Generator? Which to get? Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-03-17 11:28 +0000
                Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-17 11:10 -0400
          Re: Audio Generator or Function Generator? Which to get? George Herold <gherold@teachspin.com> - 2017-03-15 07:13 -0700
  Re: Audio Generator or Function Generator? Which to get? Ralph Mowery <rmowery28146@earthlink.net> - 2017-03-13 10:13 -0400
  Re: Audio Generator or Function Generator? Which to get? "dcaster@krl.org" <dcaster@krl.org> - 2017-03-13 09:09 -0700
    Re: Audio Generator or Function Generator? Which to get? Jasen Betts <jasen@xnet.co.nz> - 2017-03-13 18:59 +0000
      Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-14 19:43 -0400
        Re: Audio Generator or Function Generator? Which to get? krw@notreal.com - 2017-03-14 20:50 -0400
          Re: Audio Generator or Function Generator? Which to get? "dcaster@krl.org" <dcaster@krl.org> - 2017-03-14 18:34 -0700
            Re: Audio Generator or Function Generator? Which to get? krw@notreal.com - 2017-03-14 21:48 -0400
          Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 05:43 -0700
            Re: Audio Generator or Function Generator? Which to get? "dcaster@krl.org" <dcaster@krl.org> - 2017-03-15 07:30 -0700
              Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 11:36 -0700
            Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-15 17:46 -0700
              Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 19:15 -0700
                Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-15 19:26 -0700
                Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 19:45 -0700
                Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-15 20:15 -0700
                Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 21:05 -0700
                Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-15 22:24 -0700
                Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-16 10:07 -0700
                Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-16 14:06 -0400
                Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-16 15:37 -0700
    Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-13 17:43 -0700
      Re: Audio Generator or Function Generator? Which to get? "dcaster@krl.org" <dcaster@krl.org> - 2017-03-14 06:46 -0700
        Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-14 07:01 -0700
          Re: Audio Generator or Function Generator? Which to get? "dcaster@krl.org" <dcaster@krl.org> - 2017-03-14 08:51 -0700
            Re: Audio Generator or Function Generator? Which to get? amdx <nojunk@knology.net> - 2017-03-14 11:13 -0500
            Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-14 16:20 -0700
        Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-14 17:47 -0700
  Re: Audio Generator or Function Generator? Which to get? Jeff Liebermann <jeffl@cruzio.com> - 2017-03-13 09:27 -0700
    Re: Audio Generator or Function Generator? Which to get? oldschool@tubes.com - 2017-03-13 14:23 -0500
      Re: Audio Generator or Function Generator? Which to get? Ralph Mowery <rmowery28146@earthlink.net> - 2017-03-13 16:28 -0400
      Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-14 19:57 -0400
        Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 05:46 -0700
          Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-15 12:36 -0400
            Re: Audio Generator or Function Generator? Which to get? tabbypurr@gmail.com - 2017-03-15 11:38 -0700
            Re: Audio Generator or Function Generator? Which to get? Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-03-16 12:52 +0000
              Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-16 12:53 -0400
  Re: Audio Generator or Function Generator? Which to get? amdx <nojunk@knology.net> - 2017-03-13 13:43 -0500
    Re: Audio Generator or Function Generator? Which to get? amdx <nojunk@knology.net> - 2017-03-13 14:01 -0500
    Re: Audio Generator or Function Generator? Which to get? oldschool@tubes.com - 2017-03-13 14:33 -0500
      Re: Audio Generator or Function Generator? Which to get? amdx <nojunk@knology.net> - 2017-03-13 14:51 -0500
      Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-14 20:02 -0400
  Re: Audio Generator or Function Generator? Which to get? "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-03-13 21:15 +0000
  Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-14 14:31 -0400
    Re: Audio Generator or Function Generator? Which to get? whit3rd <whit3rd@gmail.com> - 2017-03-14 17:23 -0700
      Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-14 20:52 -0400
        Re: Audio Generator or Function Generator? Which to get? whit3rd <whit3rd@gmail.com> - 2017-03-14 18:24 -0700
          Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-14 23:26 -0400
            Re: Audio Generator or Function Generator? Which to get? whit3rd <whit3rd@gmail.com> - 2017-03-15 13:06 -0700
              Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-15 16:24 -0400
        Re: Audio Generator or Function Generator? Which to get? Jasen Betts <jasen@xnet.co.nz> - 2017-03-15 02:21 +0000
          Re: Audio Generator or Function Generator? Which to get? amdx <nojunk@knology.net> - 2017-03-15 07:24 -0500
            Re: Audio Generator or Function Generator? Which to get? rickman <gnuarm@gmail.com> - 2017-03-15 12:38 -0400
    Re: Audio Generator or Function Generator? Which to get? Phil Allison <pallison49@gmail.com> - 2017-03-14 17:53 -0700
  Re: Audio Generator or Function Generator? Which to get? Bill Beaty <billb@eskimo.com> - 2017-03-16 14:04 -0700
  Re: Audio Generator or Function Generator? Which to get? DemonicTubes <tlackie@gmail.com> - 2017-03-17 08:55 -0700
    Re: Audio Generator or Function Generator? Which to get? Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-03-17 16:10 +0000

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