try this, i still dont know if it works, having problems

 

Thanks for the quick reply.
After doing a little more investigation, I found that National Parts Depot actually sells a replacement solid state CVR (P/N 10804-1E) for $59.95. I think I'll give that one a try.

Dave K.

 

Buy one for 59.95 or make your own for about 5 bucks.

Free enterprise at work

 

Dude, the LM7805 is about the cheapest IC you can buy! Here are 50 from China for $11.00 (if you will buy from China), or go to Radio Shack and buy one for a couple dollars.

See, even I can recommend things that don't cost a small mortgage!

 

Yah, but Mortman said he didn't know if it worked and he was having problems with it.
Has anybody actually built one of these with a LM7805 and had it work okay? If so, I'll try building one also.
Thanks-

Dave K.

 

I not sure what my troubles are with my gauges - i have not worked on the car for a month, ill be back at it starting tonight ill report back once i narrow down my gauge peging problem and let you know how the mod woked out. To be honest it only took 10 minuits to build

 

Finaly figuared out why my gauges peg out, mini tac needs a piece of ruber/cork between the tac body and the gauge pod casing. any way the moded CVU did not work, i must have done somthing wrong.

 

We built ours and it works great.

 

http://chris66dad.tripod.com/id29.html

Here is a detailed how to article with parts I put together when I built mine. I could not find anyone who had wrote up something so I took pictures of everything when I built it
The capacitors I added are probably overkill for filtering out the noise but it was a couple of dollars and this way I know spikes wont damage the circuits. The impedance of the circuit does not require a clean signal though.

Ron

 

I think you may need a heat sink for longevity, that little voltage regulator will get hot. I see that you are using the old case as a heat sink, I'm just not sure that's adequate. For a couple of dollars you can get a small heat sink from Radio Shack.