vintage sun tach batteries???where to get them???

[Verne_Frantz]

That's right. Originals were 1.35V and they were mercury oxide, long since banned. A long time ago I did find a source of Panasonic 1.35V that were alkyline, but they've dried up too (pun intended).
As much as I want originality, there's just no other choice today but to convert to the solid state set-up.
I think there are 2 ways it's done. The tach head can be converted, which then operates like a Sun Super Tach, and the sender becomes a dummy, nothing more than a junction box for wiring (sits on the inner fender for looks). Or the sender itself can be converted to no longer need batteries, but then it needs an extra wire run to it which hurts the original appearance.
Or.....you "can" use AAs, and the needle will move, but you won't like what it does.

Verne

[396L35]

It cost more to convert the tach then the box, that is why I did the box instead...

[Belair62]

http://www.tachman.com/gm.htm Tachman says he can do them with no change in appearance or wiring..he does good work.Not sure if he means the tach or the box...worth a call.

[scott s]

Thanks for the info i didn,t even know they were being converted .This is my first encounter with such a beast,but i have to keep it since it looks so along with the orig sw greenlines under the dash.