CMOS clock, 2nd build

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6 years 8 months ago #5869 by Ty_Eeberfest
Yes that does look good. Clean metal work. I always find the case to be the "hard part" of my projects...

Look into it later when the dust is clearing off the crater.

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6 years 8 months ago #5871 by wise65vw
Replied by wise65vw on topic Re: CMOS clock, 2nd build
To be fair, the case is from Ebay. It's available in several sizes and it comes completely apart in 6 separate aluminum pieces. I just drilled some holes and stuffed everything in. The IN-4 tubes work quite well, but their quality control was poor and as a result not all of the digits are straight up and down when looking at them.






It's still got some issues I need to take care of, though. Bad ground on 5 of the transistors so half the numbers in the minutes tube don't light.

The smoke means its working
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6 years 8 months ago #5872 by Pacman223
Replied by Pacman223 on topic Re: CMOS clock, 2nd build
Wow, really from eBay?? Do you mind linking the eBay offering?? That case looks very nice..

IN-4 tubes are so cheap, to bad about the numbers aren't exactly correctly oreinted . I'm still thinking about them for a future clock.

Thanks for posting your pictures.

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6 years 8 months ago #5874 by wise65vw
Replied by wise65vw on topic Re: CMOS clock, 2nd build
Here:
SV1063 10"x3"x6" Full Aluminum Project Enclosure Instrument Case Electronic Box

This company has several other styles and sizes that remind me of old Heathkit equipment. They also have a handy set of holes at the top toward one end that works great for dissipating heat from the tubes.

The smoke means its working

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