[Roadsters] Alternative to Bimetallic Strip Gauge Regulator?

[RWM]

Mike and John,

The module is an LM2596-based board from Suntek, but is widely available 
in other configurations from other vendors:

Suntek P/N 14004271   $3.23  DC-DC Adjustable Step-down Power Module 
LM2596  (free shipping; go figure)

I have it wired directly between the stock switched Ignition (~14V 
input) and gauge power (8.2-8.3V output) spade lugs.

The "how to trim" video: http://www.youtube.com/watch?v=w2nzwa2Rx2w

Gauges seem to work ideally at an indicated board output of 8.2-8.3 volts.

- Bob

P.S.  So I also have a Moss unit available if anyone with an 
MGB/Triumph/Mini needs one.




On 6/20/2012 3:05 PM, John F Sandhoff wrote:
> In regards to finding a substitute for the gauge voltage regulator,
> reports from the British front are:
>> Yes, the Moss unit worked out of the box, but at ~10V output the
>> readings were "hot".
> It appears that certain older Volkswagens use a similar device:
> <http://www.socalautoparts.com/aftermarket-fuel-gauge-vibrator-12v-p-
> 14346.html>
>
> Besides for doing mail order, anyone in Long Beach (CA) can drop in
> and walk out with this part for $14.59 cash. They're on Paramount.
>
>> I had planned to use a diode bridge to drop the Moss output voltage, but
>> elected instead to use a $3 CC-CV DC-DC adjustable power supply module
>> trimmed to ~8V, which seems to work fine.  The CC-CV DC-DC board is not
>> much larger than the OEM regulator and seems quite stable.
> Though it doesn't provide the temperature compensation, I see the
> usefulness of this. Bob, where do you get one of these gadgets?
>
> -- John
>       John F Sandhoffsandhoff at csus.edu    Sacramento, CA