Platinum plating used to be used on some higher end commercial use points until metal price jumped for use in catalytic convertors. Old unisets kind of bad deal early 70s when GM distributors were made for the unisets only- legal challenge regarding other suppliers making them infringed on GM patent, price discrimination for aftermarket, minor dealership price break issues meant nobody else really made them and the OEM distributors couldn"t use the early seperate sets without a rebuild. Them GM discontinued production. Some vehicleowners- especcially commercial owners- then bought 10,12 or 24 sets for their own future use. The solid state triggers were replacing mechanical points by late 1970s and later on the replacement of the points distributor in GM V8s with a later 1970s electronic distributor was common-I did it in 1971 Chev C20- but the industrial engines with the old unisets were still around and cheap replacement wasn"t available until the aftermarket electronic kits using the current, patent expired components became available. Still find some old engines out there with a uniset in tight space - it was a good service deal in that regard, install, sight check gap then connect dwell meter and set to specs as engine ran. RN
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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