Folks Of Interest Early Stewart Warner gauge thread

Those tachs were very cool looking & of high quality, but they were a bit involved. Apparently, the "hockey puck" sender that got sandwiched in the distributor was specific to the particular model (of distributor). Here's a copy of the info from my 1957 S/W dealer's catalog, which tells what goes with what. I guess that was Stewart-Warner's answer to the electric Sun tachs (which hit the market in 1946), but they were a little more complex. Studebaker used them for the 6,000 RPM tachs in their mi 1950's Golden Hawks.