Low V LED flasher - Kevin McMurtrie's Monstrosity

[Watson A.Name - \"Watt Su]

Here's a netlist or the non-binaries ngs. Pic and waveforms on ABSE.

I see that there is a negative 80 mA pulse thru the LED. Weird.

* C:\Program Files\LTC\SwCADIII\LowVLEDflasher.asc
Q1 N004 N002 N003 0 2N4403
Q2 N005 N004 N002 0 2N4403
Q3 N005 N004 0 0 2N4401
Q4 N006 N005 0 0 2N4401
L1 N001 N006 560ľH Ipk=.5
R1 N001 N002 1k tol=5
R2 N002 N003 100 tol=5
R3 N005 N004 100k tol=5
D1 N006 N003 NSPW500BS
C1 N003 0 4.7ľF V=16VDC
C2 N002 0 4.7ľF V=16V
V1 N001 0 1.5VDC Rser=.2
C3 N006 N004 330pF V=100
..model D D
..lib C:\PROGRAM FILES\LTC\SWCADIII\lib\cmp\standard.dio
..model NPN NPN
..model PNP PNP
..lib C:\PROGRAM FILES\LTC\SWCADIII\lib\cmp\standard.bjt
* Low Voltage LED Flasher Kevin McMurtrie Redrawn Apr 6, 04
..tran 0 25uS 0 .5uS
..backanno
..end



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[Kevin McMurtrie]

In article <107746e31er62f3@corp.supernews.com>,
"Watson A.Name - \"Watt Sun, the Dark Remover\""
<NOSPAM@dslextreme.com> wrote:

Here's a netlist or the non-binaries ngs. Pic and waveforms on ABSE.

I see that there is a negative 80 mA pulse thru the LED. Weird.

* C:\Program Files\LTC\SwCADIII\LowVLEDflasher.asc
Q1 N004 N002 N003 0 2N4403
Q2 N005 N004 N002 0 2N4403
Q3 N005 N004 0 0 2N4401
Q4 N006 N005 0 0 2N4401
L1 N001 N006 560ľH Ipk=.5
R1 N001 N002 1k tol=5
R2 N002 N003 100 tol=5
R3 N005 N004 100k tol=5
D1 N006 N003 NSPW500BS
C1 N003 0 4.7ľF V=16VDC
C2 N002 0 4.7ľF V=16V
V1 N001 0 1.5VDC Rser=.2
C3 N006 N004 330pF V=100
.model D D
.lib C:\PROGRAM FILES\LTC\SWCADIII\lib\cmp\standard.dio
.model NPN NPN
.model PNP PNP
.lib C:\PROGRAM FILES\LTC\SWCADIII\lib\cmp\standard.bjt
* Low Voltage LED Flasher Kevin McMurtrie Redrawn Apr 6, 04
.tran 0 25uS 0 .5uS
.backanno
.end

This?
http://www.pixelmemory.us/Photos/Nerd/LED_regulator2.png

How did that odd schematic get back into discussion?