Cool there are some boom boxes in this hood i would like to jam kidding
Actually i am not it would be nice to shut down the kids with base so loud my
teeth are rattling and there three cars back rob
----- Original Message -----
From: Bill Babcock
To: Gary Schneider
Cc: Rob ; FOT
Sent: Sunday, March 09, 2008 9:27 PM
Subject: Re: [Fot] A type OD
Nice advice, you could also do it with a big capacitor, but you might
stumble upon a tuned circuit and be jamming radio stations every time you
shifted.
On Mar 9, 2008, at 12:10 PM, Gary Schneider wrote:
A waterproof switch and insulated terminals are a good plan for
reliability but won't fix the problem. The switch body needs to be grounded by
a separate wire back to the trans or chassis. The lack of a ground means your
body becomes the ground path and that is what causes the shock. The moisture
provides a leakage path from the switch terminals to your wet hand. The shift
lever is not a good ground, as the grease around its base is an insulator.
When the OD switch opens, the solenoid generates a large negative voltage
as its magnetic field collapses, same principle as your ignition coil. 12V
won't give you a shock but that will. The best solution is a power diode from
the solenoid terminal to ground to suppress the kickback voltage entirely.
That's standard practice in electronic circuits since the kickback is
destructive of electronic controls and switch contacts. The striped cathode
side goes to the solenoid terminal, other side to ground. The diode conducts
when the negative voltage occurs and harmlessly shunts out the kickback. It
could be mounted right on your switch after the ground wire is added.
Example Radio Shack part
http://www.radioshack.com/product/index.jsp?productId=2062579
Regards,
Gary Schneider
----- Original Message ----
From: Rob <19to1tr6@comcast.net>
To: Friends of Triumph <fot@autox.team.net>
Sent: Saturday, March 8, 2008 2:33:31 PM
Subject: [Fot] A type OD
With all the rain in Boston today it reminds me of a problem I need to
correct
My OD switch is mounted to a welded tab on the gear shift lever In a
rain
race with soaking wet gloves,suit and shoes I was getting a pretty good
shock
each time i activated the OD
The switch has open poles and is not water proof
Will a water proof switch and insulated mounting correct this Or will i
have
other wiring considerations. thanks rob
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Bill Babcock
Babcock & Jenkins
Billb@bnj.com
503.936.7660
www.bnj.com
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