atlanta Posted November 20, 2005 Report Share Posted November 20, 2005 I checked it out (link not valid) that guy is for real!!! i put in for his newsletter and stuff. bout time some new spy circuits came out Quote Link to comment Share on other sites More sharing options...
D0T-C0M Posted January 29, 2007 Report Share Posted January 29, 2007 I guess this site no longer reachable Quote Link to comment Share on other sites More sharing options...
monoman Posted January 30, 2007 Report Share Posted January 30, 2007 wheres the schematics? it all seems to be ads for buying cameras Quote Link to comment Share on other sites More sharing options...
Guest JimDiGriz65 Posted November 27, 2014 Report Share Posted November 27, 2014 I realize this is a very old posting, but wanted to resurrect this thread instead of starting a new one.The old narcbug website is now at: www.bugplan.com.I has some excellent circuits -- and the only crystal controlled VHF transmitters I've run across. Quote Link to comment Share on other sites More sharing options...
pebe Posted November 28, 2014 Report Share Posted November 28, 2014 Just checked the site out of curiosity and looked at the Tracker, TT5. It has faults on it - I wonder if this is typical of the other circuits? Quote Link to comment Share on other sites More sharing options...
Guest JimDiGriz65 Posted December 1, 2014 Report Share Posted December 1, 2014 Ref: the TT5 Tracker -- can you specify what's incorrect? I was going to build it and didn't see anything curious. Quote Link to comment Share on other sites More sharing options...
pebe Posted December 2, 2014 Report Share Posted December 2, 2014 These are the faults I found:The timer is described in the parts list as ‘a standard NE555 timer chip’. It is powered by 2 x 9V batteries. But that is the absolute maximum voltage rating for many of these chips, and exceeds the 16V absolute maximum of a Fairchild or Contek NE555.R4 is shown shorted out so Q2 is switched hard on during the 0.2sec pulse. It cannot oscillate under those conditions.The circuit shows on its legend ‘Page 1 of 3’, so perhaps there is more. Certainly, I would have expected to see a recommended layout to prevent possible interaction between the various inductors.EDIT: My previous statement about problem with 555 output going high was not valid, so is now removed. I have now found details of the 555 circuitry. When output pin3 is high (sourced) and its load is connected to a voltage higher than its source voltage, the output goes O/C. Sorry about that :-[ Quote Link to comment Share on other sites More sharing options...
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