KAB Stylus Minder
|KAB Stylus Minder Hour Meter. $69.95|
The KAB Stylus Minder is a useful battery operated hour meter that may find a multitude of uses in hobbies and avocations that require the reliable recording of hundreds of hours. It is a serious timing device that uses very high quality components. Made in USA.
The 20 minute "One Side and Stop" timer feature is unique to the KAB Stylus Minder and ensures that the timer is not forgotten and just runs on and on.
There is also a remote mini stereo jack that allows
access to the start - stop feature. This could be useful in attaching a switch
to some part of the record player or other piece of machinery that you would
like to keep track of hours on .
As a general rule, Conical and Elliptical styli should be replaced after 400-600 hours of use. And more sophisticated line contact styli have an extended life of 800-1000 hours.
| GREAT FEATURES
The KAB Stylus Minder is not just a Start - Stop hour meter; it is truly designed for people who play records.
We spoke to many hi fi fanatics about what features would be most important in a stylus life hour meter and the most important one was the Time One Side And Stop feature. Most everyone we spoke with mentioned that they would surely forget to turn the timer off .
Of secondary importance was hiding the Reset button. You don't want something documenting hours of use to be foiled by a reset button within reach of curious hands.
I have wanted to make a stylus hour meter ever since I first saw this ad in my 1974 Lafayette Catalog
These timers featured an unusual technology that used a mercury filled glass tube. The tube is about two inches long and has mercury with what looks like a small air gap of about 1/32". The tube had electrodes at each end, and when connected to a 1.5V battery. The air gap would migrate to one side in a predictable time and it would take about 400-500 hours for the air gap to move to one end. To reset these devices, you just unplugged the tube and turned it around and plugged it back in and the air gap would move back to the opposite end. Very clever technology, that I cannot begin to understand. These are no longer allowed to be made because they contain mercury. But examples can be found on Ebay, like this one which was fetching $100.00
In the 1990's there was an electrolyte version of the mercury tube made by the Fredericks Co. but even that is no longer available. Click here to see a copy of the letter we received from Fredericks back in 1998
So, it has taken some time to finally produce the product I've had in my minds eye for many years. Today, digital electronics, non volatile solid state memory and LCD displays make it possible to make a useful stylus life hour meter once again. The KAB Stylus Minder hour meter is not a modified kitchen timer, it is a serious industrial grade hour meter with useful features for the hi fi enthusiast and DIYer. It is made right here in the USA.
KAB ELECTRO ACOUSTICS
PLAINFIELD, NJ 07062, USA