Re: Pre-war instrument panel placard
That electrical switch was a light switch in 41 and 45. There was a different knob on the single mag planes but I don't know if that switch was ever used for ignition with the different knob. The knob in the old pictures is the same as on a Farmall tractor mag switch that is still in use. It was a pull to close switch (which would mean ignition was grounded when the knob was pulled and hot when pushed in). That is kind of nice since you could put a little hanger clip on the shaft to prevent the switch from getting bumped and making the ignition hot.
That electrical switch was a light switch in 41 and 45. There was a different knob on the single mag planes but I don't know if that switch was ever used for ignition with the different knob. The knob in the old pictures is the same as on a Farmall tractor mag switch that is still in use. It was a pull to close switch (which would mean ignition was grounded when the knob was pulled and hot when pushed in). That is kind of nice since you could put a little hanger clip on the shaft to prevent the switch from getting bumped and making the ignition hot.
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