I want to put a tach in my '53 business coupe but it's still on 6 volts. I have been searching ebay & the net to no avail. Any help would be wonderful. Chris
I got one from Westach. http://www.westach.com/ They can do positive or negative ground, any number of cylinders, and whatever rev range you want. It may take a while to get one made, however, and it's not cheap. My 5000 rpm flathead 6-volt negative ground was just under $120. --Matt
I found an old 6V Sun two piece unit on ebay and had it converted to solid state by Williamson's Instraments. You also don't need a 6V transmitter, they can make it 6V, and all the heads will work with the converted transmitter. I've seen mint (12V) 4 & 6 cylinder transmitters go begging on ebay. Williamson's charges about $175 for the conversion. They can also put a new face on your tach head or refinish your old transmitter. Check out thier website @ http://www.williamsons.com/ I love my tach and it will stay with me even if the truck finds a new home someday.
Thanks for the info guys but those are both out of my price range. I will keep your links though- for the future. Chris
There's a sun 6v transmitter on ebay now - for an 8cly. What motor do you have? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33679&item=2473538210&rd=1 Mutt
That is the transmitter for a Sun two-piece tach. You can use any head (like in Iceberg's picture) that uses an EB transmitter. They require mercury batteries, that show up on Ebay now and then, but you can use AA batteries if you change them frequently. Mutt
I now have 4 different tachometers listed on eBay that I convert to operate on 6 volt positive or negative ground systems. Check eBay again, my eBay ID is rswhitmore
I bit on this thread about 7 years ago, and developed a converter box to run any current "motor" tach to run on 6 volts positive ground. I sold 20 of them with no complaints, but we saturated the market. Good luck unless they're real cheap.
I modify tachometers for operation on 6-Volt vehicles. They are listed, and described on eBay. Take a look. Will sell direct. rswhitmore@yahoo.com