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I go way beyond that.=C2=A0 First I use a 1N4004 to protect against negati=
ve-going spikes (which car be as high as -80 volts), then I place a 15V Zen=
er or TVS to clamp any positive-going pulses (which can be as high as 120V)=
.=C2=A0 Depending on the application I also include a low value resistor or=
polyfuse to limit the current the TVS needs to sink.=C2=A0 Then there is t=
he input filter as you pointed out.
This may be a bit of overkill but without the ability to test for optimum a=
nd considering I'm only going to build a few (or one) of these things a lit=
tle overkill is cheap insurance.
=20
Dave=20
=20
=20
-----Original Message-----
From: Anthony Rhodes <spamiam@comcast.net>
To: triumphs@autox.team.net
Cc: billbrewer59@yahoo.com
Sent: Wed, Jun 1, 2022 1:40 pm
Subject: Re: [TR] TR4/6 Voltage Stabilizer
I built my own voltage stabilizer.
At the time, Moss had one that used a diode and a transistor as a form of a=
crude shunt regulator.
I used a LM2940=E2=80=9310 automotive low dropout 10 V analog regulator.
Sense and I have seen photographs of the guts of the newer electronic regul=
ators. It appears they use a single voltage regulator with no other compone=
nts around it.
As I recall,=C2=A0 These used a through hole TO 220 device with the legs be=
nt over 90 degrees and no heat sinking.
Not ideal
All these analog regulators need proper capacitors on the input in output s=
ide of the regulator.
My regulator with the LM 2940=E2=80=9310 has been in use since probably abo=
ut 2004 with no problems in a TR4A
I can give further details, schematics, etc. to people if they are interest=
ed.
-Tony
>=20
> On Jun 1, 2022, at 2:01 PM, triumphs-request@autox.team.net wrote:
>=20
> Message: 1
> Date: Tue, 31 May 2022 19:12:36 -0700
> From: William Brewer <billbrewer59@yahoo.com>
> To: Triumph List <triumphs@autox.team.net>
> Subject: [TR] TR4/6 Voltage Stabilizer
> Message-ID: <4b9c278c-ffbf-4d70-5f30-9e75ceb2468c@yahoo.com>
> Content-Type: text/plain; charset=3D"utf-8"; Format=3D"flowed"
>=20
> ???? I have a TR4 temperature gauge in my TR3. The Moss gauge voltage=20
> stabilizer only lasted a few thousand miles and the quit outputting the=
=20
> 10 volts. Anybody else having short lifespans on their voltage=20
> stabilizers? Are there better ones out there? Moss makes a big deal=20
> about "Modern electronics in a vintage style housing". Screw the vintage=
=20
> style housing, I want dependability. Is there an aftermarket one that=20
> has a long life?
** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archiv=
e
sey@cs.com
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<div style=3D"color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size=3D"3">I go way beyond that. First I use a 1N4004 to =
protect against negative-going spikes (which car be as high as -80 volts), =
then I place a 15V Zener or TVS to clamp any positive-going pulses (which c=
an be as high as 120V). Depending on the application I also include a=
low value resistor or polyfuse to limit the current the TVS needs to sink.=
Then there is the input filter as you pointed out.</font></div>
<div><br>
</div>
<div><font size=3D"3">This may be a bit of overkill but without the ability=
to test for optimum and considering I'm only going to build a few (or one)=
of these things a little overkill is cheap insurance.</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>
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black"><font=
size=3D"2">-----Original Message-----<br>
From: Anthony Rhodes <spamiam@comcast.net><br>
To: triumphs@autox.team.net<br>
Cc: billbrewer59@yahoo.com<br>
Sent: Wed, Jun 1, 2022 1:40 pm<br>
Subject: Re: [TR] TR4/6 Voltage Stabilizer<br>
<br>
<div dir=3D"ltr">I built my own voltage stabilizer.<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">At the time, Moss had one that used a diode and a transist=
or as a form of a crude shunt regulator.<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">I used a LM2940=E2=80=9310 automotive low dropout 10 V ana=
log regulator.<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Sense and I have seen photographs of the guts of the newer=
electronic regulators. It appears they use a single voltage regulator with=
no other components around it.<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">As I recall, These used a through hole TO 220 device=
with the legs bent over 90 degrees and no heat sinking.<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Not ideal<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">All these analog regulators need proper capacitors on the =
input in output side of the regulator.<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">My regulator with the LM 2940=E2=80=9310 has been in use s=
ince probably about 2004 with no problems in a TR4A<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">I can give further details, schematics, etc. to people if =
they are interested.<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">-Tony<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">> <br>
</div>
<div dir=3D"ltr">> On Jun 1, 2022, at 2:01 PM, <a ymailto=3D"mailto:triu=
mphs-request@autox.team.net" href=3D"mailto:triumphs-request@autox.team.net=
">triumphs-request@autox.team.net</a> wrote:<br>
</div>
<div dir=3D"ltr">> <br>
</div>
<div dir=3D"ltr">> Message: 1<br>
</div>
<div dir=3D"ltr">> Date: Tue, 31 May 2022 19:12:36 -0700<br>
</div>
<div dir=3D"ltr">> From: William Brewer <<a ymailto=3D"mailto:billbre=
wer59@yahoo.com" href=3D"mailto:billbrewer59@yahoo.com";>billbrewer59@yahoo.=
com</a>><br>
</div>
<div dir=3D"ltr">> To: Triumph List <<a ymailto=3D"mailto:triumphs@au=
tox.team.net" href=3D"mailto:triumphs@autox.team.net";>triumphs@autox.team.n=
et</a>><br>
</div>
<div dir=3D"ltr">> Subject: [TR] TR4/6 Voltage Stabilizer<br>
</div>
<div dir=3D"ltr">> Message-ID: <<a ymailto=3D"mailto:4b9c278c-ffbf-4d=
70-5f30-9e75ceb2468c@yahoo.com" href=3D"mailto:4b9c278c-ffbf-4d70-5f30-9e75=
ceb2468c@yahoo.com">4b9c278c-ffbf-4d70-5f30-9e75ceb2468c@yahoo.com</a>><=
br>
</div>
<div dir=3D"ltr">> Content-Type: text/plain; charset=3D"utf-8"; Format=
=3D"flowed"<br>
</div>
<div dir=3D"ltr">> <br>
</div>
<div dir=3D"ltr">> ???? I have a TR4 temperature gauge in my TR3. The Mo=
ss gauge voltage <br>
</div>
<div dir=3D"ltr">> stabilizer only lasted a few thousand miles and the q=
uit outputting the <br>
</div>
<div dir=3D"ltr">> 10 volts. Anybody else having short lifespans on thei=
r voltage <br>
</div>
<div dir=3D"ltr">> stabilizers? Are there better ones out there? Moss ma=
kes a big deal <br>
</div>
<div dir=3D"ltr">> about "Modern electronics in a vintage style housing"=
. Screw the vintage <br>
</div>
<div dir=3D"ltr">> style housing, I want dependability. Is there an afte=
rmarket one that <br>
</div>
<div dir=3D"ltr">> has a long life?<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">** <a ymailto=3D"mailto:triumphs@autox.team.net"; href=3D"m=
ailto:triumphs@autox.team.net">triumphs@autox.team.net</a> **<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Donate: <a href=3D"http://www.team.net/donate.html"; target=
=3D"_blank">http://www.team.net/donate.html</a><br>
</div>
<div dir=3D"ltr">Archive: <a href=3D"http://www.team.net/pipermail/triumphs=
" target=3D"_blank">http://www.team.net/pipermail/triumphs </a> <a href=3D"=
/a><br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailm=
an/options/triumphs/dave1massey@cs.com" target=3D"_blank">http://autox.team=
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</div>
</font></div>
</div>
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Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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