[chbot] Come on all you retro engineerss!

Carl Ranson carl.ranson at gmail.com
Fri Jan 28 00:51:56 GMT 2011


I first got interested in electronics as a kid when i got my hands on 
the 555 circuit cookbook.

On 28/01/2011 9:53 a.m., Charles Manning wrote:
> 555s... remember them?
>
> Here's an opportunity to dust off your old skills and prove that your brain
> hasn't fully calcified.
>
> http://www.555contest.com/
>
> My favourite 555-based device is by metal detector which uses 6 555s. These
> days you'd replace that all with a single 8-pin AVR.
>
> -- Charles
>
>
>
>
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