healeys
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Re: [Healeys] Plugs

To: "'Hank Leach'" <gradea1@charter.net>
Subject: Re: [Healeys] Plugs
From: "Mark Donaldson" <ardmorebusiness@xtra.co.nz>
Date: Sun, 16 Apr 2023 13:46:29 +1200
Cc: healeys@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <0e721c5fe3cfa76fd2136dfd9ce030eac9c4030c@webmail>
Smx-results: classifications=clean
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I don=E2=80=99t think that HT RFI affects modern car radios, which are =
mostly FM, not AM.  Ditto with modern digital TV and other digital =
communications.

Back in the eighties when I attended race meetings on RNZAF (Royal New =
Zealand Air Force) bases we had to run resistive HT leads because =
solid-core affected avionics on the airfields.

=20

Mark

Ardmore, NZ

=20

From: Hank Leach <gradea1@charter.net>=20
Sent: Monday, 20 March 2023 9:54 AM
To: 'josef-eckert@t-online.de' <josef-eckert@t-online.de>
Cc: 'Michael Oritt' <michael.oritt@gmail.com>; 'm.g.sharp@sympatico.ca' =
<m.g.sharp@sympatico.ca>; 'healeys@autox.team.net' =
<healeys@autox.team.net>
Subject: Re: [Healeys] Plugs

=20

I'm sure that only your neighbor gets pissed when you drive by their =
house with bumblebee wired Healeys and they also have an old tube type =
radio or TV.  Not sure that LED TVs or modern car radios are affected by =
engine noise, but all of it is RF so it might affect even your phone as =
well. Hank

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

From: "josef-eckert--- via Healeys"=20
To: "Michael Oritt", "m.g.sharp@sympatico.ca =
Sent: Sunday March 19 2023 7:44:23AM
Subject: Re: [Healeys] Plugs

I do not care what kind of noices are in nearby vehicles.

=20

=20

=20

-----Original-Nachricht-----

Betreff: Re: [Healeys] Plugs

Datum: 2023-03-19T15:15:37+0100

Von: "Michael Oritt" <michael.oritt@gmail.com =


=20

=20

=20

"I always thought the resistor plugs were to introduced to suppress =
interference with car radios, which I don=E2=80=99t have,"

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

They also eliminate your ignition's noise in nearby vehicles.

=20

Best--Michael Oritt

=20

=20

On Sun, Mar 19, 2023 at 8:11=E2=80=AFAM m.g.sharp--- via Healeys =

I do exactly what Bob does with my BT7 except I use a non-resistor plug =
=E2=80=93 Champion N12YC and 0.028=E2=80=9D gap.  I too use a Lucas =
Sports coil.  I always thought the resistor plugs were to introduced to =
supress interference with car radios, which I don=E2=80=99t have, but I =
am happy to be corrected on that.   I think plugs are unnecessarily =
changed too frequently.  I remove them once in a while (every few years) =
and clean and check the gaps.  I run them until they shows signs of =
deterioration.  I have never had a plug fail me in the Healey.

=20

Mirek

=20

From: Healeys <healeys-bounces@autox.team.net =
Sent: March 18, 2023 2:17 PM
Subject: Re: [Healeys] Plugs

=20

I've run over 150K miles on Champion plugs with nary an issue (and will =
continue to do so); RN12YC for the BJ8 and whatever the recommended is =
for a 100M (RN10C?). With Pertronix Ignitors in both, I run slightly =
over 'book' value (0.025") at 0.028" and both run very well (I also run =
stranded copper wire secondaries, so the 'R' is important, plus the plug =
caps have a resistor in them as well). My one-time auto shop teacher =
father maintained whatever spark was sufficient to ignite the mixture =
was adequate--mixture and compression took it from there--but a larger =
gap induces a 'hotter' spark which may be beneficial with leaner =
mixtures and at higher engine RPM (but has less margin as the electrode =
erodes). A larger gap requires the coil to produce more secondary =
voltage to jump the gap; a sports coil may be required to produce a =
consistent spark. 12K miles on plugs is fine in my experience--as long =
as the engine is in good nick--and they can be cleaned and re-gapped at =
least once. Sandblasting is a no-no as it will pit the ceramic insulator =
and can cause issues.

I came across a YouTube video by David Vizard where he claims E3 Diamond =
'Split Fire' plugs produced slightly better mileage; yep, E3 makes a =
plug for Big Healeys (6-cyl only, I think). I've heard rumors that =
counterfeit NGK plugs are in the market.



On 3/18/2023 9:49 AM, Simon Lachlan via Healeys wrote:

Here=E2=80=99s a can of worms that we haven=E2=80=99t delved into for a =
while=E2=80=A6.

So, I=E2=80=99m trying to get all my ducks in a row for a short run =
abroad. Car is a MkII BT7 with a DW fast road cam, 3 HD6s, big bore 6 =
branch and 123Ignition plus a so-called Sports Coil.

=20

1.      I was looking through my library of files on Healey topics and saw =
that we were all over the place on plug gaps=E2=80=A6..all the way up to =
0.035=E2=80=9D. So what=E2=80=99s the opinion there??
2.      And which plug? Seemed to be mostly between NGK=E2=80=99s BP6ES & =
BP5ES. Was a hold-out for their B8EGV 5627  but that was dismissed =
fairly vigorously by Jeremy Welch as being way OTT for normal road use.
3.      And, I have 12,000 miles+++ as plug replacement mileage so long as =
they still look and perform OK. Any thoughts?

=20

Thanks, Simon

=20

=20

_______________________________________________

Archive: http://www.team.net/pipermail/healeys =
http://autox.team.net/archive/healeys

http://autox.team.net/mailman/listinfo/healeys

http://autox.team.net/mailman/options/healeys/michael.oritt@gmail.com

=EF=BB=BF=20


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-NZ link=3Dblue =
vlink=3Dpurple style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#1F497D;m=
so-fareast-language:EN-US'>I don=E2=80=99t think that HT RFI affects =
modern car radios, which are mostly FM, not AM.=C2=A0 Ditto with modern =
digital TV and other digital communications.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#1F497D;m=
so-fareast-language:EN-US'>Back in the eighties when I attended race =
meetings on RNZAF (Royal New Zealand Air Force) bases we had to run =
resistive HT leads because solid-core affected avionics on the =
airfields.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#1F497D;m=
so-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#1F497D;m=
so-fareast-language:EN-US'>Mark<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#1F497D;m=
so-fareast-language:EN-US'>Ardmore, NZ<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D;mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></spa=
n></p><div><div style=3D'border:none;border-top:solid #E1E1E1 =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> Hank Leach =
&lt;gradea1@charter.net&gt; <br><b>Sent:</b> Monday, 20 March 2023 9:54 =
AM<br><b>To:</b> 'josef-eckert@t-online.de' =
&lt;josef-eckert@t-online.de&gt;<br><b>Cc:</b> 'Michael Oritt' =
&lt;michael.oritt@gmail.com&gt;; 'm.g.sharp@sympatico.ca' =
&lt;m.g.sharp@sympatico.ca&gt;; 'healeys@autox.team.net' =
&lt;healeys@autox.team.net&gt;<br><b>Subject:</b> Re: [Healeys] =
Plugs<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>I'm sure that only your neighbor gets =
pissed when you drive by their house with bumblebee wired Healeys and =
they also have an old tube type radio or TV.&nbsp; Not sure that LED TVs =
or modern car radios are affected by engine noise, but all of it is RF =
so it might affect even your phone as well. =
Hank<o:p></o:p></p><p>-----------------------------------------<o:p></o:p=
></p><p class=3DMsoNormal style=3D'margin-bottom:12.0pt'>From: =
&quot;josef-eckert--- via Healeys&quot; <br>To: &quot;Michael =
Oritt&quot;, &quot;<a =
href=3D"mailto:m.g.sharp@sympatico.ca";>m.g.sharp@sympatico.ca</a>&quot;<b=
r>Cc: &quot;<a =
href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>&quot;<b=
r>Sent: Sunday March 19 2023 7:44:23AM<br>Subject: Re: [Healeys] =
Plugs<o:p></o:p></p><p style=3D'margin:0cm'><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>I =
do not care what kind of noices are </span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:#222222'>i=
n nearby vehicles.</span><o:p></o:p></p><p style=3D'margin:0cm'><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><o:p></o:p></p><p style=3D'margin:0cm'>&nbsp;<o:p></o:p></p><p =
style=3D'margin:0cm'>&nbsp;<o:p></o:p></p><p =
style=3D'margin:0cm'>-----Original-Nachricht-----<o:p></o:p></p><p =
style=3D'margin:0cm'>Betreff: Re: [Healeys] Plugs<o:p></o:p></p><p =
style=3D'margin:0cm'>Datum: 2023-03-19T15:15:37+0100<o:p></o:p></p><p =
style=3D'margin:0cm'>Von: &quot;Michael Oritt&quot; &lt;<a =
href=3D"mailto:michael.oritt@gmail.com";>michael.oritt@gmail.com</a>&gt;<o=
:p></o:p></p><p style=3D'margin:0cm'>An: &quot;<a =
href=3D"mailto:m.g.sharp@sympatico.ca";>m.g.sharp@sympatico.ca</a>&quot; =
&lt;<a =
href=3D"mailto:m.g.sharp@sympatico.ca";>m.g.sharp@sympatico.ca</a>&gt;<o:p=
></o:p></p><p style=3D'margin:0cm'>&nbsp;<o:p></o:p></p><p =
style=3D'margin:0cm'>&nbsp;<o:p></o:p></p><p =
style=3D'margin:0cm'>&nbsp;<o:p></o:p></p><div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#222222'>&q=
uot;I always thought the resistor plugs were to introduced to suppress =
interference with car radios, which I don=E2=80=99t =
have,&quot;</span><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#3333FF'><o=
:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#222222'>--=
---------------------------------------------------</span><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#3333FF'><o=
:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#222222'>Th=
ey&nbsp;also eliminate your ignition's noise in nearby =
vehicles.</span><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#3333FF'><o=
:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#222222'>&n=
bsp;</span><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#3333FF'><o=
:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#222222'>Be=
st--Michael Oritt</span><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#3333FF'><o=
:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#222222'>&n=
bsp;</span><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:#3333FF'><o=
:p></o:p></span></p></div></div><p class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'><o:p=
>&nbsp;</o:p></span></p><div><div><p class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>On =
Sun, Mar 19, 2023 at 8:11=E2=80=AFAM m.g.sharp--- via Healeys &lt;<a =
href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>&gt; =
wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm =
6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>I =
do exactly what Bob does with my BT7 except I use a non-resistor plug =
=E2=80=93 Champion N12YC and 0.028=E2=80=9D gap.&nbsp; I too use a Lucas =
Sports coil.&nbsp; I always thought the resistor plugs were to =
introduced to supress interference with car radios, which I =
don=E2=80=99t have, but I am happy to be corrected on that.&nbsp; =
&nbsp;I think plugs are unnecessarily changed too frequently.&nbsp; I =
remove them once in a while (every few years) and clean and check the =
gaps.&nbsp; I run them until they shows signs of deterioration.&nbsp; I =
have never had a plug fail me in the Healey.<o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>&nbs=
p;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>Mire=
k<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>&nbs=
p;<o:p></o:p></span></p><div><div style=3D'border:none;border-top:solid =
#E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><strong><spa=
n lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>From=
:</span></strong><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'> =
</span><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>Heal=
eys &lt;<a =
href=3D"mailto:healeys-bounces@autox.team.net";>healeys-bounces@autox.team=
.net</a>&gt; <strong><span style=3D'font-family:"Arial",sans-serif'>On =
Behalf Of</span></strong> Bob Spidell<br><strong><span =
style=3D'font-family:"Arial",sans-serif'>Sent:</span></strong> March 18, =
2023 2:17 PM<br><strong><span =
style=3D'font-family:"Arial",sans-serif'>To:</span></strong> <a =
href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a><br><str=
ong><span =
style=3D'font-family:"Arial",sans-serif'>Subject:</span></strong> Re: =
[Healeys] Plugs</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'><o:p=
></o:p></span></p></div></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>&nbs=
p;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;margin-bottom:12.0pt'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>I've=
 run over 150K miles on Champion plugs with nary an issue (and will =
continue to do so); RN12YC for the BJ8 and whatever the recommended is =
for a 100M (RN10C?). With Pertronix Ignitors in both, I run slightly =
over 'book' value (0.025&quot;) at 0.028&quot; and both run very well (I =
also run stranded copper wire secondaries, so the 'R' is important, plus =
the plug caps have a resistor in them as well). My one-time auto shop =
teacher father maintained whatever spark was sufficient to ignite the =
mixture was adequate--mixture and compression took it from there--but a =
larger gap induces a 'hotter' spark which may be beneficial with leaner =
mixtures and at higher engine RPM (but has less margin as the electrode =
erodes). A larger gap requires the coil to produce more secondary =
voltage to jump the gap; a sports coil may be required to produce a =
consistent spark. 12K miles on plugs is fine in my experience--as long =
as the engine is in good nick--and they can be cleaned and re-gapped at =
least once. Sandblasting is a no-no as it will pit the ceramic insulator =
and can cause issues.<br><br>I came across a YouTube video by David =
Vizard where he claims E3 Diamond 'Split Fire' plugs produced slightly =
better mileage; yep, E3 makes a plug for Big Healeys (6-cyl only, I =
think). I've heard rumors that counterfeit NGK plugs are in the =
market.<br><br><o:p></o:p></span></p><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>On =
3/18/2023 9:49 AM, Simon Lachlan via Healeys =
wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>Her=
e=E2=80=99s a can of worms that we haven=E2=80=99t delved into for a =
while=E2=80=A6.</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'><o:p=
></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>So,=
 I=E2=80=99m trying to get all my ducks in a row for a short run abroad. =
Car is a MkII BT7 with a DW fast road cam, 3 HD6s, big bore 6 branch and =
123Ignition plus a so-called Sports Coil.</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'><o:p=
></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'><o:p=
></o:p></span></p><ol start=3D1 type=3D1><li =
class=3Dm4506245762485897014msolistparagraph =
style=3D'color:black;mso-list:l0 level1 lfo1'><span lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif'>I was looking =
through my library of files on Healey topics and saw that we were all =
over the place on plug gaps=E2=80=A6..all the way up to 0.035=E2=80=9D. =
So what=E2=80=99s the opinion there??</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif'><o:p></o:p></spa=
n></li><li class=3Dm4506245762485897014msolistparagraph =
style=3D'color:black;mso-list:l0 level1 lfo1'><span lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif'>And which =
plug? Seemed to be mostly between NGK=E2=80=99s BP6ES &amp; BP5ES. Was a =
hold-out for their B8EGV 5627&nbsp; but that</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif'> </span><span =
lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif'>was dismissed =
fairly vigorously by Jeremy Welch as being way OTT for normal road =
use.</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif'><o:p></o:p></spa=
n></li><li class=3Dm4506245762485897014msolistparagraph =
style=3D'color:black;mso-list:l0 level1 lfo1'><span lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif'>And, I have =
12,000 miles+++ as plug replacement mileage so long as they still look =
and perform OK. Any thoughts?</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif'><o:p></o:p></spa=
n></li></ol><p class=3Dm4506245762485897014msolistparagraph><span =
lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'><o:p=
></o:p></span></p><p class=3Dm4506245762485897014msolistparagraph><span =
lang=3DEN-CA =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>Tha=
nks, Simon</span><span lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'><o:p=
></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>&nbs=
p;<o:p></o:p></span></p></blockquote><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-CA =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>&nbs=
p;<o:p></o:p></span></p></div></div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>____=
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