Sun tack and unkown tach

[big gear head]

I was digging through a box today looking for an oil pressure gauge and I found these. I remember the Sun tach, but I don't remember where the other one came from. There isn't a name on it, but it says Made in USA on the back. Anybody know what it is?

[JRC99]

"It's made by RAC. AKA Rac Tac. Sold at Gemco, White Front, K mart etc. Also sold by Sears under the Roger Penske name."

https://www.jalopyjournal.com/forum/threads/can-anybody-identify-this-old-tach.560835/#post-6226897

You'd be pleasantly surprised what can be turned up just by googling a part number! According to another HAMB post, RAC is Rite Autotronics Corp.

[Lynn]

I have some RAC gauges from the early 70's and THINK they were made in Japan.

[big gear head]

Thanks for the information. I wonder how this was supposed to mount. It's got 2 screw holes in the back. I'll do a little searching and see if I can find some pictures of it mounted.