73 Alarmed
Thread Starter
Racer
Joined: Apr 2008
Posts: 418
Likes: 0
From: destin fl
Thanks BB427. I Will Try To Find The Box Today And Give You The Part Number. I Have An Old School Chilton Corvette,Nova, Chevrolet Book That Shows The Wiring Diagram For This Part In 1973!!!! On The Corvette Only. Thanks In Advance. Lynn
Last edited by vett us all; Jun 11, 2008 at 07:45 AM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Racer
Joined: May 2008
Posts: 323
Likes: 0
From: ********** New York
The diffence in the 2 units is the mercury sensor cost $5 - $8 & a microwave or radar sensor cost $40 - $50.
So yes the early 80's alarms did not have a radar sensor , However they have a mercury or spring loaded motion sensor.
Melting Slicks
Joined: May 2007
Posts: 3,246
Likes: 4
From: Bay Area CA
You are correct so is "vett us all" this is out of context. Vett Us All is speaking of a motion sensor not a "radar" or "Microwave" motion that sees movement.The factory made a mercury switch which today we call a shock sensor. They called a motion sensor cause if someone lifted the car to tow it the motion-aka-shock would cause the mercury to move to 1 side of the switch and send a ground pulse to the alarm or a spring loaded motion. Hence to word motion. Todays day day in age the term motion sensor means a microwave sensor which detects actual movement.
The diffence in the 2 units is the mercury sensor cost $5 - $8 & a microwave or radar sensor cost $40 - $50.
So yes the early 80's alarms did not have a radar sensor , However they have a mercury or spring loaded motion sensor.
The diffence in the 2 units is the mercury sensor cost $5 - $8 & a microwave or radar sensor cost $40 - $50.
So yes the early 80's alarms did not have a radar sensor , However they have a mercury or spring loaded motion sensor.
Dealer installed add on?
Not in the options list.
Not Factory.
http://www.corvetteforum.net/c3/vette73/S_OPTIONS.htm
Last edited by RunningMan373; Jun 13, 2008 at 02:26 AM.
Racer
Joined: May 2008
Posts: 323
Likes: 0
From: ********** New York
Well I can't give black and white documentation .However I have been installing car audio and alarm equipt sense 1989 and pulled 100's of factory installed pieces many of which came with merc and shaker switches. Understand that sense as long as I have been in the audio industry dealers security installs are not done on the assembly line . Weather they have a in shop installers or out source the installs & alarm installs are up to the installer on the features in the past. Unlike todays day and age where auto sales people push extra features for comissions. Therefore if the installer happens to have a new part or feature in his carrie box he might install it just to try and get the deal to pay extra. Even if it is a factory alarm like the ones built into the computure system like they started installing in the mid 90's installer tryto push features to the deals to make extra coin.
So was it a factory option don't know, However could it have been installed at the dealer possibly.
So was it a factory option don't know, However could it have been installed at the dealer possibly.