Subject: Re: [TR] TR4/6 Voltage Stabilizer

From: auprichard uprichard.net <[email-masked]>
Date: Wed, 1 Jun 2022 12:02:10 +0000

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** [email-masked] **

Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archive

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From: Robert Rochlin <[email-masked]>
Date: Wed, 1 Jun 2022 10:24:15 -0400

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I found the same thing.  Replaced functioning original voltage regulator for=
 solid state.  The solid state regulator lasted about a year and I=E2=80=99m=
 back to the reliable analog original=20
Bob
TR6=20

Sent from my iPhone

> On Jun 1, 2022, at 8:05 AM, auprichard uprichard.net <auprichard@uprichard=
.net> wrote:
>=20
> =EF=BB=BF
> I went through three digital stabilizers in my TR4 before I reverted to an=
 original analog one and haven=E2=80=99t had a problem since.
> Andrew Uprichard
> Jackson, MI
> =20
> From: Triumphs <[email-masked]> On Behalf Of William Brew=
er
> Sent: Tuesday, May 31, 2022 10:13 PM
> To: Triumph List <[email-masked]>
> Subject: [TR] TR4/6 Voltage Stabilizer
> =20
>      I have a TR4 temperature gauge in my TR3. The Moss gauge voltage stab=
ilizer only lasted a few thousand miles and the quit outputting the 10 volts=
. Anybody else having short lifespans on their voltage stabilizers? Are ther=
e better ones out there? Moss makes a big deal about "Modern electronics in a=
 vintage style housing". Screw the vintage style housing, I want dependabili=
ty. Is there an aftermarket one that has a long life?
>=20
>      TIA,
>=20
>      Bill Brewer
>=20
>      Morro Bay, CA
>=20
>      1960 TR3
>=20
>      1953 Morgan Plus4
>=20
>=20
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archi=
ve
>=20
> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/rrochli=
[email-masked]

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">I found the same thing. &nbsp;Replaced func=
tioning original voltage regulator for solid state. &nbsp;The solid state re=
gulator lasted about a year and I=E2=80=99m back to the reliable analog orig=
inal&nbsp;<div>Bob</div><div>TR6&nbsp;<br><br><div dir=3D"ltr">Sent from my i=
Phone</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Jun 1, 2022, at=
 8:05 AM, auprichard uprichard.net &lt;[email-masked]&gt; wrote:<b=
r><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF=

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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Times New Roman&quot=
;,serif;color:#1F497D">I went through three digital stabilizers in my TR4 be=
fore I reverted to an original analog one and haven=E2=80=99t had a problem s=
ince.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Times New Roman&quot=
;,serif;color:#1F497D">Andrew Uprichard<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Times New Roman&quot=
;,serif;color:#1F497D">Jackson, MI<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Times New Roman&quot=
;,serif;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0=
in 0in">
<p class=3D"MsoNormal"><b>From:</b> Triumphs &lt;[email-masked]=
.net&gt; <b>On Behalf Of
</b>William Brewer<br>
<b>Sent:</b> Tuesday, May 31, 2022 10:13 PM<br>
<b>To:</b> Triumph List &lt;[email-masked]&gt;<br>
<b>Subject:</b> [TR] TR4/6 Voltage Stabilizer<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp; I have a TR4 temperature gauge in my TR3. The Mo=
ss gauge voltage stabilizer only lasted a few thousand miles and the quit ou=
tputting the 10 volts. Anybody else having short lifespans on their voltage s=
tabilizers? Are there better ones out there? Moss
 makes a big deal about "Modern electronics in a vintage style housing". Scr=
ew the vintage style housing, I want dependability. Is there an aftermarket o=
ne that has a long life?<o:p></o:p></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp; TIA,<o:p></o:p></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp; Bill Brewer<o:p></o:p></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp; Morro Bay, CA<o:p></o:p></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp; 1960 TR3<o:p></o:p></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp; 1953 Morgan Plus4<br>
<br>
<o:p></o:p></p>
</div>

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From: DAVID MASSEY <[email-masked]>
Date: Wed, 1 Jun 2022 16:36:55 +0000 (UTC)

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 Not to be pedantic, but the original is a digital regulator.=C2=A0 It is c=
omposed of the bimetal spring and a heater=C2=A0 As the heater heats up the=
 bimetal spring will open the contacts and switch off the heater (and the v=
oltage to the gauges).=C2=A0 As the spring cools off the spring will switch=
 the power back on and so the cycle continues giving an average voltage of =
10 volts.
The electronic versions are actually analog.=C2=A0 They use a classic integ=
rated circuit voltage regulator that is a tried and proven part.=C2=A0 If t=
hey are prone to failure it is because the designer did not make proper pre=
cautions against the very unfriendly environment a car's electric power sys=
tem is.=C2=A0 This is especially true in older cars.=C2=A0 When loads are s=
witched on and off there are voltage spikes, both positive and negative, th=
at will far exceed the ratings on typical solid state components.=C2=A0 Mot=
ors are especially prone to doing this.=C2=A0 Heater fans, wipers, starter =
motors.
I have designed many custom electronic devices for my cars and I have never=
 had one fail.=C2=A0 But I don't cheap out on the protection devices.=C2=A0=
 The Crane ignition module is another example of an electronic device that =
stands up well to the nastiness doled out by the car's electrical system.

All that said, I still run an OE voltage stabilizer in my TR6.=C2=A0 Never =
found a need to change it.
=20
Dave=20

=20
=20

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rted to an original analog one and haven=E2=80=99t had a problem since.

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<div style=3D"color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size=3D"3">Not to be pedantic, but the original is a digital re=
gulator.&nbsp; It is composed of the bimetal spring and a heater&nbsp; As t=
he heater heats up the bimetal spring will open the contacts and switch off=
 the heater (and the voltage to the gauges).&nbsp; As the spring cools off =
the spring will switch the power back on and so the cycle continues giving =
an <span style=3D"text-decoration: underline;">average</span> voltage of 10=
 volts.</font></div>

<div><br>
</div>

<div><font size=3D"3">The electronic versions are actually analog.&nbsp; Th=
ey use a classic integrated circuit voltage regulator that is a tried and p=
roven part.&nbsp; If they are prone to failure it is because the designer d=
id not make proper precautions against the very unfriendly environment a ca=
r's electric power system is.&nbsp; This is especially true in older cars.&=
nbsp; When loads are switched on and off there are voltage spikes, both pos=
itive and negative, that will far exceed the ratings on typical solid state=
 components.&nbsp; Motors are especially prone to doing this.&nbsp; Heater =
fans, wipers, starter motors.</font></div>

<div><font size=3D"3"><br>
</font></div>

<div><font size=3D"3">I have designed many custom electronic devices for my=
 cars and I have never had one fail.&nbsp; But I don't cheap out on the pro=
tection devices.&nbsp; The Crane ignition module is another example of an e=
lectronic device that stands up well to the nastiness doled out by the car'=
s electrical system.<br>
</font></div>

<div><br>
</div>

<div><font size=3D"3">All that said, I still run an OE voltage stabilizer i=
n my TR6.&nbsp; Never found a need to change it.</font><br>
</div>

<div> <br>
</div>

<div style=3D"clear:both">
<div style=3D"color:black;font:12pt Arial, Helvetica, sans-serif;">
<div><font size=3D"4">Dave <br>
</font></div>

<div><font size=3D"3"><span style=3D"font-size: 10pt; color: black;"><br>
</span></font></div>
<br>
</div>
</div>

<div> <br>
</div>

<div> <br>
</div>

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<div class=3D"yiv2589538093WordSection1">

<div class=3D"yiv2589538093MsoNormal"><span style=3D"font-family:New serif;=
color:#1F497D;">I went through three digital stabilizers in my TR4 before I=
 reverted to an original analog one and haven=E2=80=99t had a problem since=
.</span></div>
<br>
</div>
</div>
</div>
</font></div>
</div>

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