MA1010 clock module

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Joined: Wed Apr 25, 2007 11:28 am

MA1010 clock module

Post by NanoWit » Wed Apr 25, 2007 6:32 pm

I have several MA1010 clock modules left over from a project that are available with the required transformer. These clock modules were made by National Semiconductor but are now no longer available.
The red LED display is .84 inches high.
To make a complete clock all you need is the included transformer and 2 switches to set (fast set & slow set) the time. I will include 2 reed switches with each module.
Features of the clock are:
Brightness control (10k pot)
12 or 24 hr display
50 or 60 HZ operation
PM indicator
Sleep and snooze alarm
Alarm output drives 8ohm spkr

You can find the data sheets for the module at:
The site is in a foreign language but just click on the MA1010 module and you can view/dowload all 6 data sheets

I am asking $ 7 for each plus shipping
price includes module, transformer and 2 reed switches

Post reply or PM if you are interested


Posts: 1
Joined: Mon Sep 14, 2009 5:55 pm

Re: MA1010 clock module

Post by Brad » Tue Sep 15, 2009 2:15 am


Do you still have any of those MA1010 clock modules? A number of years ago, I built a clock
for my ham radio station, using 2 modules; one set up for local time in the 12-hour format
and the other set up for GMT (UTC) in the 24-hour format.

The one for the local time quit quite awhile ago and I'd like to find another module to replace
the inoperative one. Thanks for any help!

My e-mail address is my ham radio callsign (N9EN) [at]


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