[TR] TR4/6 Voltage Stabilizer

[Anthony Rhodes]

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 LM2940–10 automotive low dropout 10 V analog regulator.

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.

As I recall,  These used a through hole TO 220 device with the legs bent over 90 degrees and no heat sinking.

Not ideal

All these analog regulators need proper capacitors on the input in output side of the regulator.

My regulator with the LM 2940–10 has been in use since probably about 2004 with no problems in a TR4A

I can give further details, schematics, etc. to people if they are interested.

-Tony

> 
> On Jun 1, 2022, at 2:01 PM, triumphs-request at autox.team.net wrote:
> 
> Message: 1
> Date: Tue, 31 May 2022 19:12:36 -0700
> From: William Brewer <billbrewer59 at yahoo.com>
> To: Triumph List <triumphs at autox.team.net>
> Subject: [TR] TR4/6 Voltage Stabilizer
> Message-ID: <4b9c278c-ffbf-4d70-5f30-9e75ceb2468c at yahoo.com>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
> 
> ???? I have a TR4 temperature gauge in my TR3. The Moss gauge voltage 
> stabilizer only lasted a few thousand miles and the quit outputting the 
> 10 volts. Anybody else having short lifespans on their voltage 
> stabilizers? Are there better ones out there? Moss makes a big deal 
> about "Modern electronics in a vintage style housing". Screw the vintage 
> style housing, I want dependability. Is there an aftermarket one that 
> has a long life?