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<< Lancair Builders' Mail List >>
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<<He also said they were solid state and therefore, didn't need diodes across
them for arc suppression. Is that true?>>
No. With all due respects to Don who is one hellova pilot and my friend,
these relays do NOT contain any semiconductor devices. They DO have
"pre-contacts" which limit arcing when switching inductive loads in order
to extend contact life.
I am glad that Don and Neico have finally "discovered" these relays since I
first sent them samples over seven years ago...grumble...grumble...
...writing this from the "kitchen table" of my travel trailer in the
foothills of the Great Smokey Mountains of NC...
<JC>
[As mentioned previously here, don't forget that these relays are
a bit different mechanically than the starter relays which are provided
with the kits. The Ford relays include a 'signal' contact which is used
to send voltage to the transit light... these relays do not have that
contact. The solution is a simple one, however, and provides both
the isolation between the two relay coils and contact arc suppression at
the same time. Using a full-wave bridge rectifier is the answer... run a wire from the + side of each relay coil to each of the AC terminals on
the rectifier. Connect the + side of the transit light to the + side of
the rectifier and the - side of the rectifier to ground. I'm using Mouser part # 625-GBPC35005 (35A, 50V) as it attaches with a #8 screw
through its center and uses 4- .250x.032 Faston terminals for its
electrical connections. <Marv> ]
LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html
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