With some technical help from other members, they found that the neon bulbs that have stopped working can be given a second life by reversing the polarity.
Ed Thelen had decided to work with Doug Martin and clean the dirt off the boards in the German 1401.
Ron Williams mentioned that the timing signals of the German Machine have not been checked for some time.
Ed thought that was important and jumped right on it.
Now the German machine is having a problem operating.
George Ahearn brought in his external garage door keypad that would kill a new battery in 2 hours. That is just the sort of problem Ron Crane, Doug Martin and Bill Newman like to sink their teeth into.
After some checkout, Ron Crane said "I think I know what it is" and disappeared down the hall with the board in hand. He had gone into the men's room and washed the circuit board. When he returned with the board dried, it worked fine. He had noticed some corrosion around one of the transistors!
Good Catch Ron.
The Connecticut 1401 is having a problem reading cards again. Last week Bill Newman, Ron Crane and Stan Paddock read up on how the reading circuits work. Without Ron Williams present, we came up with a number of possibilities that were all wrong. But it was fun.
Today, Ron Williams, Stan Paddock, Doug Martin and Bill Newman worked on the problem some more.
Ron Williams showed us how to switch two connections so the first set of brushes is switched with the second.
Doug Martin entered his first program into memory that prints out cards that fail.
This showed that the problem is not associated with just one set of brushes.
We will be working on it again next week.
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