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Re: discharging caps

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From Bill Sloman <bill.sloman@ieee.org>
Newsgroups sci.electronics.design
Subject Re: discharging caps
Date Sun, 27 Sep 2026 01:26:37 +1000
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On 27/09/2026 12:20 am, john larkin wrote:
> On Fri, 25 Sep 2026 19:59:43 +0200, Jeroen Belleman
> <jeroen@nospam.please> wrote:
> 
>> On 9/25/26 16:38, john larkin wrote:
>>> On Fri, 25 Sep 2026 12:28:01 +0200, Jeroen Belleman
>>> <jeroen@nospam.please> wrote:
>>>
>>>> On 9/25/26 11:59, John R Walliker wrote:
>>>>> On 25/09/2026 08:38, Jeroen Belleman wrote:
>>>>>> On 9/25/26 09:09, Bill Sloman wrote:
>>>>>>> On 25/09/2026 4:55 am, john larkin wrote:
>>>>>>>> On Thu, 24 Sep 2026 07:54:55 -0400, legg <legg@nospam.magma.ca> wrote:
>>>>>>>>
>>>>>>>>> On Wed, 23 Sep 2026 21:42:35 +0100, liz@poppyrecords.invalid.invalid
>>>>>>>>> (Liz Tuddenham) wrote:
>>>>>>>>>
>>>>>>>>>> john larkin <jl@glen--canyon.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Suppose we have a box with some big caps inside, for example 0.2
>>>>>>>>>>> farads that run at about 200 volts. When AC power is off, we want to
>>>>>>>>>>> discharge them for several reasons.
>>>>>>>>>>>
>>>>>>>>>>> Putting, say, a 1K resistor across them dissipates 40 watts and
>>>>>>>>>>> has a
>>>>>>>>>>> 200 second time constant. It will take many tau before the voltage
>>>>>>>>>>> gets low enough for people to poke around inside.
>>>>>>>>>>>
>>>>>>>>>>> The ideal discharger would be a constant-current or even better a
>>>>>>>>>>> constant-power load, all the way down to zero volts. It would be
>>>>>>>>>>> dumb,
>>>>>>>>>>> not switched by some decision circuit or anything fancy like that.
>>>>>>>>>>>
>>>>>>>>>>> And of course we need several LEDs as warnings that the thing is
>>>>>>>>>>> hot.
>>>>>>>>>>
>>>>>>>>>> I had some relevant experience yesterday:
>>>>>>>>>>
>>>>>>>>>> I was working on a radio transmitter with a 750 H.T. rail and had
>>>>>>>>>> switched it off to make some changes to the circuit.  As I leaned
>>>>>>>>>> forward with my hand on the chassis, the palm of that hand touched
>>>>>>>>>> the
>>>>>>>>>> H.T. tag on a tagstrip and I received a painful elecric shock and
>>>>>>>>>> some
>>>>>>>>>> superficial burns.
>>>>>>>>>>
>>>>>>>>>> It appears the discharge resistors in the power supply had gone high
>>>>>>>>>> resistance and were taking a couple of minutes to pull the 750v rail
>>>>>>>>>> down to 100v.  Given the time interval between switching off and
>>>>>>>>>> getting
>>>>>>>>>> the shock, I estimate it must still have been around 700v from a
>>>>>>>>>> couple
>>>>>>>>>> of 100uf capacitors in series.
>>>>>>>>>>
>>>>>>>>>> I don't have any suitable discharge resistors in stock and I and
>>>>>>>>>> have no
>>>>>>>>>> intention of doing their job for them a second time, so I have
>>>>>>>>>> glued a
>>>>>>>>>> strip of plastic along the top of the tagstrip as a temporary
>>>>>>>>>> measure.
>>>>>>>>>> I will order some replacement resistors ASAP and am happy to
>>>>>>>>>> report that
>>>>>>>>>> the burn marks have almost disappeared
>>>>>>>>>
>>>>>>>>> Were you working alone?
>>>>>>>>>
>>>>>>>>> Just about the only workplace fatality I'm close to was
>>>>>>>>> a tech at Varian. Alone in the plant, he bypassed safety
>>>>>>>>> interlocks on a TWT supply test cage to speed up his job.
>>>>>>>>
>>>>>>>>
>>>>>>>> Varian was our biggest customer for many years, the NMR division.
>>>>>>>>
>>>>>>>> Other technologies displaced NMR. The superconductive magnets were too
>>>>>>>> expensive. Agilent bought Varian and killed the NMR operation.
>>>>>>>
>>>>>>> The local hospitals are still full of Magnetic Resonance Scanners.
>>>>>>> The Nuclear tag worried patients so it got dropped from the name.
>>>>>>>
>>>>>>> If Varian lost money on the operation, they were probably doing
>>>>>>> something wrong. Super-conducting magnets are  expensive, but other
>>>>>>> manufacturers still seem to be making money by building and selling
>>>>>>> the technology.
>>>>>>>
>>>>>>> <snip>
>>>>>>>
>>>>>>
>>>>>> What technologies _displaced_ NMR?
>>>
>>> Ask Professor Google.
>>>
>>>>>>
>>>>>> Jeroen Belleman
>>>>>
>>>>> Nothing has.
>>>>> MRI scans are still the preferred technology for many investigations.
>>>>
>>>> That's indeed what I believed.
>>>>
>>>>> There are some interesting enhancements such as the use of
>>>>> hyperpolarised Xenon for lung imaging and function analysis.
>>>>>
>>>>
>>>> I see. Atoms with an odd number of protons and/or neutrons can
>>>> resonate in a magnetic field and there are lots of applications
>>>> of nuclear magnetic resonance other than medical imaging.
>>>>
>>>> Jeroen Belleman
>>>
>>> The Varian NMR group did a little micro-imaging (we furnished the
>>> gradient drivers and temperature controllers) but most of the business
>>> was analytical chemistry, not imaging.
>>>
>>> I think Bruker still does some analytical NMR.
>>>
>>> Varian should have owned the medical imaging buisiness but blew that.
>>>
>>> Kids often do NMR as a science project. The hydrogen line in water is
>>> huge.
>>>
>>>
>>> John Larkin
>>> Highland Tech Glen Canyon Design Center
>>> Lunatic Fringe Electronics
>>
>>
>> I'm pretty convinced NMR is alive and well. I wanted to hear
>>from you what other technologies replaced it.
> 
> One thing is tagging molecules with fluorescent add-ons and counting
> single photons, on a surface or flowing though a capillary.

It's not exactly an imaging technique. Single photon counting is slow.

> I've seen labs with a giant warm superconductive magnet in the corner
> collecting dust, because the budget couldn't afford liquid helium.
> 
> The big medical imagers are starting to include reliquifiers.

Anybody sensible recirculates their helium.

> "Liquid nitrogen costs as much as beer and liquid helium costs as much
> as whiskey."

But the atmosphere is full of nitrogen. Terrestrial helium is emitted as 
alpha particle by radioactive elements and can accumulate in in natural 
gas deposits (up to 7% by volume). There isn't all that much of it and 
you don't want to throw it away.

As a graduate student I kept the gas traps on my vacuum line cold with 
daily doses of liquid nitrogen

> I spilled a lot of LN2 on the floor once and froze my knee.

Nobody in the Melbourne University Chemistry Department was that clumsy. 
There was some spillage, but no frostbite that I knew of.

-- 
Bill Sloman, Sydney

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Thread

discharging caps john larkin <jl@glen--canyon.com> - 2026-09-07 08:18 -0700
  Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-07 17:20 +0100
    Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-07 09:58 -0700
      Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-07 19:51 +0100
      Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-08 10:27 -0400
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 08:16 -0700
        Re: discharging caps Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-09-08 15:44 +0000
          Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 09:35 -0700
  Re: discharging caps ehsjr <ehsjr@verizon.net> - 2026-09-07 12:26 -0400
    Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-07 10:00 -0700
      Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-07 19:32 +0100
        Re: discharging caps john larkin <jl@htigct.com> - 2026-09-07 15:38 -0700
      Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-08 07:41 +0000
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 07:57 -0700
          Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-08 15:23 +0000
            Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 09:38 -0700
              Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-09 10:33 +0000
                Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-11 11:54 +0100
                Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-11 11:01 +0000
                Re: discharging caps Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-09-11 13:59 +0000
  Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-08 04:28 +1000
    Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-07 11:59 -0700
  Re: discharging caps chrisq <syseng@gfsys.co.uk> - 2026-09-07 19:33 +0100
    Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-07 11:52 -0700
      Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-08 17:35 +1000
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 07:43 -0700
          Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 02:03 +1000
            Re: discharging caps john larkin <jl@htigct.com> - 2026-09-08 13:10 -0700
              Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 16:25 +1000
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 08:00 -0700
          Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 03:09 +1000
            Re: discharging caps john larkin <jl@htigct.com> - 2026-09-08 12:56 -0700
              Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 16:40 +1000
                Re: discharging caps piglet <erichpwagner@hotmail.com> - 2026-09-09 09:51 +0000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-09 03:44 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 20:57 +1000
                Re: discharging caps Jeroen Belleman <jeroen@nospam.please> - 2026-09-09 14:25 +0200
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-10 00:12 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-09 07:59 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-10 02:27 +1000
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-09 10:42 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-10 17:43 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-10 07:10 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-11 00:58 +1000
                Re: discharging caps chrisq <syseng@gfsys.co.uk> - 2026-09-09 17:29 +0100
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-10 03:35 +1000
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-10 01:32 +1000
                Re: discharging caps Jeroen Belleman <jeroen@nospam.please> - 2026-09-09 23:10 +0200
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-10 18:38 +1000
                Re: discharging caps antispam@fricas.org (Waldek Hebisch) - 2026-09-13 00:27 +0000
                Re: discharging caps Lane W <cactus_DAC@yahoo.com> - 2026-09-12 18:38 -0600
                Re: discharging caps antispam@fricas.org (Waldek Hebisch) - 2026-09-13 03:11 +0000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-13 07:50 -0700
                Re: discharging caps Lane W <cactus_DAC@yahoo.com> - 2026-09-13 09:14 -0600
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 02:18 +1000
                Re: discharging caps Lane W <cactus_DAC@yahoo.com> - 2026-09-13 10:28 -0600
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 01:28 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-13 12:03 -0700
                Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-13 23:54 +0100
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-13 17:12 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 16:05 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-14 08:21 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-15 18:28 +1000
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-15 10:23 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-16 18:39 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-16 03:21 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-16 21:16 +1000
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 15:59 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-14 08:22 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-15 18:31 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-12 17:59 -0700
                Re: discharging caps wmartin <wwm@wwmartin.net> - 2026-09-12 21:21 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-13 16:27 +1000
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-13 16:24 +1000
                Re: discharging caps antispam@fricas.org (Waldek Hebisch) - 2026-09-13 13:36 +0000
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 02:05 +1000
                Re: discharging caps John R Walliker <jrwalliker@gmail.com> - 2026-09-13 19:40 +0100
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-13 12:08 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 16:18 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-14 08:24 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-15 18:36 +1000
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 16:11 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-14 08:56 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-15 18:50 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-10 07:17 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-11 01:02 +1000
      Re: discharging caps chrisq <syseng@gfsys.co.uk> - 2026-09-08 11:19 +0100
        Re: discharging caps chrisq <syseng@gfsys.co.uk> - 2026-09-08 11:33 +0100
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 07:23 -0700
          Re: discharging caps chrisq <syseng@gfsys.co.uk> - 2026-09-08 16:28 +0100
            Re: discharging caps chrisq <syseng@gfsys.co.uk> - 2026-09-08 21:13 +0100
              Re: discharging caps john larkin <jl@htigct.com> - 2026-09-08 16:06 -0700
          Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 02:10 +1000
            Re: discharging caps john larkin <jl@htigct.com> - 2026-09-08 12:59 -0700
              Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 16:45 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-09 03:22 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 21:07 +1000
          Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-09 02:10 +1000
          Re: discharging caps Buzz McCool <buzz_mccool@yahoo.com> - 2026-09-14 09:44 -0700
            Re: discharging caps john larkin <jl@htigct.com> - 2026-09-14 10:15 -0700
      Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-11 16:23 +1000
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-11 07:45 -0700
          Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-12 01:59 +1000
      Re: discharging caps Cydrome Leader <presence@MUNGEpanix.com> - 2026-09-17 07:19 +0000
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-17 07:46 -0700
          Re: discharging caps Cydrome Leader <presence@MUNGEpanix.com> - 2026-09-18 04:54 +0000
            Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-18 07:57 -0700
          Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-18 15:45 +1000
            Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-18 08:02 -0700
              Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-19 16:40 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-19 08:48 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-20 16:30 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-20 02:17 -0700
                Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-20 12:30 +0100
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-21 00:52 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-20 08:46 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-21 17:41 +1000
    Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-08 07:46 +0000
      Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 07:26 -0700
  Re: discharging caps Lasse Langwadt <llc@fonz.dk> - 2026-09-07 21:18 +0200
    Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-07 12:36 -0700
      Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-07 22:26 +0100
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-07 15:14 -0700
          Re: discharging caps "Edward Rawde" <invalid@invalid.invalid> - 2026-09-07 20:06 -0400
            Re: discharging caps Don Y <blockedofcourse@foo.invalid> - 2026-09-07 19:30 -0700
              Re: discharging caps "Edward Rawde" <invalid@invalid.invalid> - 2026-09-07 23:40 -0400
                Re: discharging caps Don Y <blockedofcourse@foo.invalid> - 2026-09-07 22:04 -0700
          Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-08 08:45 +0100
            Re: discharging caps John R Walliker <jrwalliker@gmail.com> - 2026-09-08 11:59 +0100
              Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-08 12:30 +0100
            Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-08 07:34 -0700
              Re: discharging caps ehsjr <ehsjr@verizon.net> - 2026-09-08 12:55 -0400
              Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-13 08:15 +0100
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-13 07:41 -0700
                Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-13 17:45 +0100
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 03:53 +1000
                Re: discharging caps John R Walliker <jrwalliker@gmail.com> - 2026-09-13 19:28 +0100
                Re: discharging caps ehsjr <ehsjr@verizon.net> - 2026-09-13 17:16 -0400
              Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-14 10:20 -0400
                Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-14 15:41 +0100
  Re: discharging caps Carl <carl.ijamesXX@YYverizon.net> - 2026-09-07 21:10 -0400
  Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-08 10:37 -0400
  Re: discharging caps Jeremiah Jones <jj@j.j> - 2026-09-08 22:14 -0700
  Re: discharging caps someone <2a59d59e3809f827ce709d3815e3950eef4a6a93af5557a93a7fdfba71460843@example.com> - 2026-09-09 17:45 +0000
    Re: discharging caps john larkin <jl@htigct.com> - 2026-09-09 11:40 -0700
    Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-10 09:55 +0100
      Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-10 07:20 -0700
        Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-11 16:32 +1000
          Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-11 07:46 -0700
        Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-11 17:08 +0100
          Re: discharging caps john larkin <jl@htigct.com> - 2026-09-11 14:28 -0700
            Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-12 16:24 +1000
              Re: discharging caps John R Walliker <jrwalliker@gmail.com> - 2026-09-12 10:49 +0100
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-13 01:09 +1000
              Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-12 07:54 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-13 01:20 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-12 09:12 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-13 02:53 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-12 12:43 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-13 16:37 +1000
  Re: discharging caps Joerg <news@analogconsultants.com> - 2026-09-09 15:15 -0700
    Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-10 12:25 +0100
      Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-10 13:09 +0100
        Re: discharging caps John R Walliker <jrwalliker@gmail.com> - 2026-09-10 14:10 +0100
          Re: discharging caps Joerg <news@analogconsultants.com> - 2026-09-10 11:05 -0700
          Re: discharging caps Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-09-10 19:12 +0000
  Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-13 14:52 -0400
    Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-13 12:17 -0700
      Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-14 16:25 +1000
      Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-14 10:15 -0400
      Re: discharging caps "Edward Rawde" <invalid@invalid.invalid> - 2026-09-17 19:53 -0400
        Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-17 19:15 -0700
          Re: discharging caps "Edward Rawde" <invalid@invalid.invalid> - 2026-09-17 23:50 -0400
          Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-18 15:58 +1000
            Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-18 07:26 -0700
              Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-19 16:26 +1000
            Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-20 11:25 -0400
              Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-20 08:42 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-21 17:54 +1000
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-21 10:09 -0700
                Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-21 08:59 -0400
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-21 08:02 -0700
                Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-21 13:00 -0400
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-21 10:12 -0700
                Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-22 10:12 -0400
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-22 08:25 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-23 03:55 +1000
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-22 17:36 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-23 16:18 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-23 09:05 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-24 16:36 +1000
                Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-24 08:11 -0400
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-24 07:26 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-25 00:52 +1000
                Re: discharging caps ehsjr <ehsjr@verizon.net> - 2026-09-24 18:40 -0400
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-24 16:22 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-25 16:50 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-25 07:26 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-26 01:32 +1000
                Re: discharging caps antispam@fricas.org (Waldek Hebisch) - 2026-09-26 03:12 +0000
                Re: discharging caps "Edward Rawde" <invalid@invalid.invalid> - 2026-09-26 00:38 -0400
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-26 07:08 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-27 01:07 +1000
                Re: discharging caps JM <sunaecoNoChoppedPork@gmail.com> - 2026-09-26 15:49 +0100
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-28 10:11 -0700
                Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-23 09:24 -0400
                Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-21 17:01 +0000
            Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-20 11:44 -0400
  Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-23 21:42 +0100
    Re: discharging caps Lane W <cactus_DAC@yahoo.com> - 2026-09-23 14:44 -0600
      Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-23 17:51 -0700
      Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-24 10:07 +0100
        Re: discharging caps Simon Simple <nothanks@nottoday.co.uk> - 2026-09-24 12:01 +0100
          Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-24 13:59 +0100
    Re: discharging caps john larkin <jl@htigct.com> - 2026-09-23 14:16 -0700
      Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-24 10:07 +0100
        Re: discharging caps john larkin <jl@htigct.com> - 2026-09-24 11:51 -0700
      Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-24 07:58 -0400
    Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-24 07:54 -0400
      Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-24 13:59 +0100
        Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-24 17:56 -0400
          Re: discharging caps john larkin <jl@htigct.com> - 2026-09-24 16:27 -0700
          Re: discharging caps liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-09-25 09:22 +0100
      Re: discharging caps john larkin <jl@htigct.com> - 2026-09-24 11:55 -0700
        Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-25 17:09 +1000
          Re: discharging caps Jeroen Belleman <jeroen@nospam.please> - 2026-09-25 09:38 +0200
            Re: discharging caps John R Walliker <jrwalliker@gmail.com> - 2026-09-25 10:59 +0100
              Re: discharging caps Jeroen Belleman <jeroen@nospam.please> - 2026-09-25 12:28 +0200
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-25 22:42 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-25 07:38 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-26 01:11 +1000
                Re: discharging caps Jeroen Belleman <jeroen@nospam.please> - 2026-09-25 19:59 +0200
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-26 15:56 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-26 09:24 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-27 16:22 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-27 03:20 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-27 20:55 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-27 07:59 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-28 12:35 +1000
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-28 10:15 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-29 17:22 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-26 07:20 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-27 01:26 +1000
                Re: discharging caps Jeroen Belleman <jeroen@nospam.please> - 2026-09-26 22:58 +0200
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-26 16:20 -0700
                Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-27 07:39 +0000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-27 03:29 -0700
                Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-27 13:50 +0000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-27 08:04 -0700
                Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-27 15:16 +0000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-27 08:29 -0700
                Re: discharging caps Jan Panteltje <alien@comet.invalid> - 2026-09-28 06:38 +0000
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-28 17:34 +1000
                Re: discharging caps john larkin <jl@htigct.com> - 2026-09-28 10:17 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-29 17:09 +1000
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-28 12:54 +1000
                Re: discharging caps john larkin <jl@glen--canyon.com> - 2026-09-27 20:14 -0700
                Re: discharging caps Bill Sloman <bill.sloman@ieee.org> - 2026-09-28 16:58 +1000
                Re: discharging caps legg <legg@nospam.magma.ca> - 2026-09-26 10:25 -0400

csiph-web