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  #11  
Old 05-06-2019, 07:57 PM
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Newbomb Turk Newbomb Turk is offline
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That's a beautiful piece of work by your cousin, Zep.
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  #12  
Old 05-06-2019, 09:32 PM
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Quote:
Originally Posted by Newbomb Turk
That's a beautiful piece of work by your cousin, Zep.

Thanks. He had a much fancier version for himself. I wish I had some pics of it. His pad had hold down clamps for clusters. It sensed when continuity was broken on all igniters and it released the model. I believe his umbilical tower had some functions as well.
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  #13  
Old 05-29-2019, 12:19 AM
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Good news. I've got it working again. The boards are laid out on my workbench and I'm not done with it yet, but it's getting there. I replaced all but one of the electrolytic caps. I needed a 22uF 35v but I only had some 16v and 25v. Got a few ordered, but in the mean time, it's working with that old cap.

I replaced a dead LED and the new one is WAY brighter than the rest. I'll replace them all while I'm at it. Good thing I got a bag of 100!
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  #14  
Old 05-30-2019, 12:21 AM
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Got all the LED's replaced. The countdown timer is about 13% too fast. I've got it set at a minute and it takes about 52 seconds. It uses a 25k ohm variable trimmer resistor tied in with the 555 chip. I vaguely remember Eddie telling me that it ran slightly fast and was adjusted out as far as it would go. I don't know if it's a little faster now or if it's about the same as it has always been, considering it's been probably 10 years since I've used it.

I've learned a considerable amount about electronics making the repairs and I've got pretty good at soldering small components. The controller will be ready for July 20, but I don't know if I'll have a Saturn V ready to go.

Woops, I see one of the LED mounting clips is pushed up. Fixed.

Video
http://sendvid.com/0a9hbjc0

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  #15  
Old 05-30-2019, 12:38 AM
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Very Nice !
Now get that Saturn V ready.
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