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Old 05-21-2011, 05:28 PM
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Join Date: Feb 2009
Posts: 1
Hartmann Pulse Counter

Had this tool for many years and has worked perfectly. Recently stopped working and I removed the back cover and found R19 resistor cooked. The top color band is brown, _____ , ______, Gold. If a member has this tool in their inventory, would you mind removing the back cover and give me the color bands for this resistor.

Any on care to share some information on the builder of this tool? My understanding is that his name was Paul Hartmann and he was a Mercedes Dealer tech in the '90's.
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Old 02-26-2013, 07:20 PM
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Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,357

scroll to the bottom of the article for instructions on building a pulse counter.
K6JRF Auto Page

Build a 9-digit Pulse Counter for under $20 imsolidstate

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