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Re: Direct digital I/O ?

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From Dave Higton <dave@davehigton.me.uk>
Newsgroups comp.sys.raspberry-pi
Subject Re: Direct digital I/O ?
Date Sat, 02 Jul 2016 19:43:37 +0100
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In message <nl918d$qgl$2@dont-email.me>
          Tauno Voipio <tauno.voipio@notused.fi.invalid> wrote:

>On 2.7.16 20:07, Martin Gregorie wrote:
>> On Sat, 02 Jul 2016 19:22:00 +0300, Tauno Voipio wrote:
>>
>>> Your memory may have developed a drop here: The DM 160 is just a digital
>>> on-off indicator. The tuning indicators have been some other DM:s with
>>> analog pattern display.
>>>
>> Then I've never seen a DM-160, only the magic-eye tuning indicators on
>> valve radios. From the up-thread context I thought they were called
>> DM-160s - my mistake.
>
>Look for DM70 or DM71, for example.

About fifty years afo I made a battery portable tape recorder that used
a DM71 (I think) as a recording level indicator - this was another use
case for "magic eye" valves.

Dave

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Direct digital I/O  ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-09 14:47 +0100
  Re: Direct digital I/O ? GlowingBlueMist <GlowingBlueMist@blackhole.io> - 2016-06-09 11:22 -0500
  Re: Direct digital I/O  ? "Dave Liquorice" <allsortsnotthisbit@howhill.com> - 2016-06-09 19:56 +0100
    Re: Direct digital I/O  ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-10 19:55 +0100
      Re: Direct digital I/O  ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-10 22:27 +0000
        Re: Direct digital I/O  ? mm0fmf <none@invalid.com> - 2016-06-11 07:45 +0100
          Re: Direct digital I/O  ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-11 08:37 +0000
            Re: Direct digital I/O ? The Natural Philosopher <tnp@invalid.invalid> - 2016-06-11 09:41 +0100
              Re: Direct digital I/O ? "Dave Liquorice" <allsortsnotthisbit@howhill.com> - 2016-06-11 11:17 +0100
                Re: Direct digital I/O ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-11 14:00 +0100
                Re: Direct digital I/O ? cb@elaine.df.lth.se (Christian Brunschen) - 2016-06-11 16:12 +0000
                Re: Direct digital I/O ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-12 22:00 +0100
                Re: Direct digital I/O ? cb@elaine.df.lth.se (Christian Brunschen) - 2016-06-12 22:40 +0000
                Re: Direct digital I/O ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-13 11:02 +0100
                Re: Direct digital I/O ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-12 22:04 +0100
              Re: Direct digital I/O ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-11 13:49 +0100
            Re: Direct digital I/O  ? Rob <nomail@example.com> - 2016-06-11 09:23 +0000
              Re: Direct digital I/O  ? Ahem A Rivet's Shot <steveo@eircom.net> - 2016-06-11 10:47 +0100
            Re: Direct digital I/O  ? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-06-11 12:46 -0400
              Re: Direct digital I/O  ? mm0fmf <none@invalid.com> - 2016-06-12 09:20 +0100
                Re: Direct digital I/O ? Michael J. Mahon <mjmahon@aol.com> - 2016-06-12 11:07 -0500
                Re: Direct digital I/O  ? andrew@cucumber.demon.co.uk (Andrew Gabriel) - 2016-06-12 16:13 +0000
                Re: Direct digital I/O  ? jeffj@panix.com (Jeff Jonas) - 2016-07-01 20:39 -0400
                Re: Direct digital I/O  ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-07-02 10:40 +0100
                Re: Direct digital I/O  ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-02 13:55 +0000
                Re: Direct digital I/O ? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2016-07-02 19:22 +0300
                Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-07-02 17:47 +0100
                Re: Direct digital I/O ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-02 17:07 +0000
                Re: Direct digital I/O ? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2016-07-02 21:30 +0300
                Re: Direct digital I/O ? The Natural Philosopher <tnp@invalid.invalid> - 2016-07-02 19:35 +0100
                Re: Direct digital I/O ? Dave Higton <dave@davehigton.me.uk> - 2016-07-02 19:43 +0100
                Re: Direct digital I/O ? The Natural Philosopher <tnp@invalid.invalid> - 2016-07-02 20:07 +0100
                Re: Direct digital I/O  ? andrew@cucumber.demon.co.uk (Andrew Gabriel) - 2016-07-03 18:59 +0000
                Re: Direct digital I/O  ? "Ivan D. Reid" <Ivan.Reid@ivan.fsnet.co.uk> - 2016-07-03 19:15 +0000
  Re: Direct digital I/O  ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-13 14:23 +0100
    Re: Direct digital I/O  ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-13 14:13 +0000
      Re: Direct digital I/O  ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-13 15:09 +0000
        Re: Direct digital I/O  ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-13 17:48 +0100
      Re: Direct digital I/O  ? mm0fmf <none@invalid.com> - 2016-06-13 17:45 +0100
        Re: Direct digital I/O  ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-13 17:04 +0000
          Re: Direct digital I/O  ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-13 19:13 +0100
      Re: Direct digital I/O  ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-13 17:47 +0100
    Re: Direct digital I/O  ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-13 17:49 +0100
      Re: Direct digital I/O  ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-13 19:07 +0100
      Re: Direct digital I/O ? rickman <gnuarm@gmail.com> - 2016-06-13 14:25 -0400
        Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-13 19:45 +0100
          Re: Direct digital I/O ? Jim H <invalid@invalid.invalid> - 2016-06-13 20:14 +0000
            Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-14 09:38 +0100
        Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-13 19:57 +0100
          Re: Direct digital I/O ? Mike Fleming <{mike}@tauzero.co.uk> - 2016-06-14 10:48 +0100
            Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-14 11:41 +0100
              Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-14 11:48 +0100
            Re: Direct digital I/O ? rickman <gnuarm@gmail.com> - 2016-06-14 20:24 -0400
              Re: Direct digital I/O ? The Natural Philosopher <tnp@invalid.invalid> - 2016-06-15 08:13 +0100
                Re: Direct digital I/O ? rickman <gnuarm@gmail.com> - 2016-06-15 03:26 -0400
                Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-15 08:54 +0100
                Re: Direct digital I/O ? AndyW <Andy@nojunqmail.com> - 2016-06-15 16:48 +0100
                Re: Direct digital I/O ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-15 21:02 +0000
                Re: Direct digital I/O ? Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-15 11:21 +0000
                Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-15 16:21 +0100
              Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-15 08:52 +0100
              Re: Direct digital I/O ? Gordon Levi <gordon@address.invalid> - 2016-06-15 18:57 +1000
                Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-15 10:28 +0100
                Re: Direct digital I/O ? rickman <gnuarm@gmail.com> - 2016-06-15 10:57 -0400
                Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-15 16:23 +0100
                Re: Direct digital I/O ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-15 16:46 +0100
                Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-15 17:04 +0100
                Re: Direct digital I/O ? Rob Morley <nospam@ntlworld.com> - 2016-06-15 17:43 +0100
                Re: Direct digital I/O ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-15 20:57 +0100
    Re: Direct digital I/O  ? Paul <paul@pcserviceselectronics.co.uk> - 2016-06-13 17:46 +0100
      Re: Direct digital I/O  ? "gareth G4SDW GQRP #3339" <no.spam@thank.you.invalid> - 2016-06-13 19:06 +0100

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