Re: 23 series windshield wiper assembly?
Posted by HH56 On 2016/1/25 21:42:42
It is very possible Packard changed switch vendors so just because they look different from the early style doesn't mean they are not correct. BDeB mentioned seeing some of the wheel style switches for sale on ebay. I had never seen them before but that doesn't mean much.
I was curious if the round wheel like resistors could be found. Ones with holes are called washer resistors and solid center are disc resistors. No idea when this style started to be used but apparently they are quite common in high power applications today.
A blower motor isn't really high power but it does produce a fair amount of heat in the resistor and this type does have a lot of surface area to handle the heat generated. Depending on air flow they can dIssipate that heat fairly quickly.
Most of the resistors are ceramic based and mixed with other compounds rather than carbon and was probably the same then. Might be the reason you thought it appeared to be a metal of some type. Hopefully yours are good. Finding one or two at retail does seem to be a problem but if you want a few thousand, several places will sell them. This is what todays version available from one mfg looks like..
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I was curious if the round wheel like resistors could be found. Ones with holes are called washer resistors and solid center are disc resistors. No idea when this style started to be used but apparently they are quite common in high power applications today.
A blower motor isn't really high power but it does produce a fair amount of heat in the resistor and this type does have a lot of surface area to handle the heat generated. Depending on air flow they can dIssipate that heat fairly quickly.
Most of the resistors are ceramic based and mixed with other compounds rather than carbon and was probably the same then. Might be the reason you thought it appeared to be a metal of some type. Hopefully yours are good. Finding one or two at retail does seem to be a problem but if you want a few thousand, several places will sell them. This is what todays version available from one mfg looks like..
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