Failure

I thought I had a quick little project to improve things, nope !  I've mentioned failure with the Westclox before:

https://wb9kzy.blogspot.com/2023/05/boss-again.html 

https://wb9kzy.blogspot.com/2023/05/boss.html 

I decided to try to get around the limited life of a Nimh cell (limited by the cell voltage compared to primary cells) by using a regulator, I tried it with a Seiko (now ABLIC) S812C15 1.5 volt regulator using two AAA Nimh cells:

But it doesn't work, the clock doesn't do anything when connected to the regulator output.  This is probably due to the limited capacitor size (2.2 uF tantalum) on the output and also the limited current capability of the Seiko (50 mA as I recall).  The Seiko regulators have the lowest quiescent current of any on the market that I am aware of - but that apparently comes at the price of output current in this case.  I could have used a different regulator chip but then battery life would be bad - and that was the whole reason for trying this to begin with since a Nimh AA cell only lasts a month.

So I reverted back to the single NimH AA cell.  At least I tried.

Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm