bertram31.com

Anybody got any info on SMI brand tachs. Internet is a blank.

http://www.xcceleration.com/9.htm I don't know if is this what you look for. Greetings

Thanks Luis but they are older marine diesel tachs.

I believe they are altenator tachs but I'm not sure. They could also work off a generator.

Now that is old Bruce! What are you working on?

I'm gonna build a wind generator and I'm looking thru some of my parts boxes for a tach to use.

I found 4 of these still in good shape and I'm not quite sure of the input signal. I think they are altenator, which will work but would like to know for sure.