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instrument gauge cluster problems

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6PakBee View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 6PakBee Quote  Post ReplyReply Direct Link To This Post Posted: Apr/13/2019 at 9:08am
Originally posted by 990V8 990V8 wrote:

Why is nothing ever simple? And why are none of the sets of rechargeable batteries for my camera holding charge.......
 
Ivor

I think those questions rank right up with who turns out the light when the freezer door closes, where does the fire go when it goes out, and what is the meaning of life.  As to the LM7805 chip, I know it's used a lot and was the first (to the best of my knowledge) electronic replacement for the automotive electromechanical regulator.

I personally use the version from rt-engineering as it mimics the original and isn't prone to a failure that would apply the full +12v to the gauges.  Again, just personal preference.

https://www.rt-eng.com/index.php/RTE_limiter.html
Roger Gazur
1969 'B' Scheme SC/Rambler
1970 RWB 4-spd Machine
1970 Sonic Silver auto AMX

All project cars.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote farna Quote  Post ReplyReply Direct Link To This Post Posted: Apr/15/2019 at 6:31am
Any electronics store (or Amazon?) would have a multi position Molex connector (standard 0.062" pin and socket) . They come in 1-36 pin sizes, increments of two (except for the single, or course!). You might want to use one of those instead of individual connectors for the wires. I know those round connectors on the back of the original PCB are a PITA to remove, but then they have usually been on there many years... even those that have been removed a time or two like yours have probably been on 10-20 years between removals.

I use those for car stereo installs in my old vehicles. Wire one of those into the car and keep an index card with the pin-out in the glove box, wire that side up to the pigtail with the stereo. Easy to swap out that way, just get another connector and wire the pigtail, plug in.
Frank Swygert
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