LumberJocks

Digital Clock Case

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Project by Jim Jakosh posted 06-27-2020 02:20 AM 560 views 0 times favorited 22 comments Add to Favorites Watch

This is an OOOOOOOOOOld project. I used to build digital clocks in 1970 ( before they were on the market) and I made steel cases for them when I worked in the tool room. I found 3 of these completed kits from Optoelectronics in a box in my office and decided to finish them. One of them, however , is missing the 5314N 24pin IC chip. These kits were $10 back in the day and I went looking for the chip and it is $39 so one clock may not get finished. It is a Simple Clock..12/24 hour setting switch and fast and slow setting buttons.

If you know of a 5314 chip at a reasonable price I’d be interested !!!

Any way for the wood part, I had one board of birds eye maple and resawed it and planed it to 5/16”. Then I mitered the edges of the top, bottom and sides and glued them together. The front and the back are rabbeted on all four edges to fit in the case. The front has a recess milled in the back and piece of plexiglass is glued in there. It has 4 rubber feet that I cut out with a plug cutter and pit in the recesses.

The case is finished withe clear semi gloss spray enamel.

Cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!





22 comments so far

View MJR's profile

MJR

370 posts in 1220 days


#1 posted 06-27-2020 02:24 AM

Wow, Cool throwback

View James E McIntyre's profile

James E McIntyre

835 posts in 2098 days


#2 posted 06-27-2020 02:35 AM

This project is so interesting. It has history with a new box around it of beautiful maple.
Where did you get these clocks back in the 70’s? Made in USA?

The photography is very good. New technique?

-- James E McIntyre

View lew's profile

lew

13148 posts in 4561 days


#3 posted 06-27-2020 02:56 AM

Cool!

I have one just like it. Built from scratch including printed circuit boards. Been ticking away for almost 50 years

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View lew's profile

lew

13148 posts in 4561 days


#4 posted 06-27-2020 03:05 AM

Try here http://electronicsusa.com/mm5314nclockchip-m.html

A little cheaper

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View pottz's profile

pottz

10339 posts in 1790 days


#5 posted 06-27-2020 04:05 AM

reminds me of when the first digital watches came out.

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View Mark Wilson's profile

Mark Wilson

2841 posts in 1869 days


#6 posted 06-27-2020 05:18 AM

It was, of course, the beginning of the end, for humanity, you know? Digital clocks in everything. And, suddenly, no one knew how to set a clock.

-- Mark

View pottz's profile

pottz

10339 posts in 1790 days


#7 posted 06-27-2020 05:45 AM



It was, of course, the beginning of the end, for humanity, you know? Digital clocks in everything. And, suddenly, no one knew how to set a clock.

- Mark Wilson

hell who cares i havn’t even worn a watch in 20 years,besides time has already run out,good luck all.

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View Cliff 's profile

Cliff

1755 posts in 2529 days


#8 posted 06-27-2020 05:58 AM

Jim…Nice Work.
Regards,
Cliff.

-- Cliff Australia : Snoring is good. It blows away all the Sawdust.

View John's profile

John

1840 posts in 2076 days


#9 posted 06-27-2020 06:53 AM

Finishing a project that old must feel real good! The wood case looks great, how does it compare to the metal case that you used to make?

-- John, Sunshine Coast, BC, Canada.

View littlecope's profile

littlecope

3097 posts in 4308 days


#10 posted 06-27-2020 08:24 AM

Gosh, I love boxes and yours is nicely proper for the task! Are you cleaning a closet (to find a relic like that?)

-- Mike in Concord, NH---Unpleasant tasks are simply worthy challenges to improve skills.

View Ivan's profile

Ivan

16080 posts in 3673 days


#11 posted 06-27-2020 10:17 AM

Woow! This is so cool Jim!!!! Super idea!

-- Ivan, Croatia, Wooddicted

View recycle1943's profile

recycle1943

4593 posts in 2428 days


#12 posted 06-27-2020 10:58 AM

nice choice of wood

-- Dick, Malvern Ohio - my biggest fear is that when I die, my wife sells my toys for what I told her I paid for them

View Jim Jakosh's profile

Jim Jakosh

24957 posts in 3911 days


#13 posted 06-27-2020 12:25 PM

Thank you all for the nice comments.

Hi James, back in the 70’s I got into a lot of small electronic experimenting. These were from Optoelectronics. That included the PC boards and the chips and the chip sockets and the 7 segment LED’s …made in USA.. I was going to build one complete without a kit and use Nixie tubes but the power consumption for those tubes was way higher than the LEDs. I also bought components from James Electronics- they are now Jameco. I still buy from them.I draped black material over my photo booth to shoot the lighter wood cabinet

Hi Lew, I might have known..we think alike in a lot of things!!!Thank you very much for that lead on the 5314….it is half price of what I found. I have to do one more search in my old electronics cabinet before I order one. it should be there..I hope.

Hi John. They were 2- pieces metal formed (top and bottom) in a brake and screwed together and painted. Much more crude than this one. I don’t know where any of them are presently.

Hi Mike, My office is full of projects!!I’m trying to finish old projects in between the ones I have going. I have a magnetic motor I’ve been working on and that may come out again soon. It needs some design work on the cam. But too many new projects come in weekly to veer off on it.

Cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View doubleDD's profile

doubleDD

9539 posts in 2849 days


#14 posted 06-27-2020 12:35 PM

I can appreciate the nostalgia coming from these clocks. Jim giving them a home to keep time alive is better late then never. Surprised you don’t have a built in one somewhere around your workbench.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View splintergroup's profile

splintergroup

3865 posts in 2028 days


#15 posted 06-27-2020 02:25 PM

Gee Jim, we must be long lost brothers!

I built the exact same clocks in the ‘70s, even opted to add the alarm circuitry and “seconds” LEDs.
I remember at first it didn’t work only to find out the silk screening of the LED drive transistors were all backwards.

It still functions today, although it is in limbo since I can’t stand the shrieking alarm beep-beep-beep and of course the resetting every time the power glitches.

I remember the “thrill” of plugging in that IC ( a big deal for a 12 year old 8^). I have some of the ICL7107 based digital thermometer kits around somewhere, you gave me some ideas! (scary how I remember that part number after all this time 8^)

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