Hi Everyone.

I am currently creating a training device and wondered what everyone's thoughts were. I am trying to think of different bugs I can make underneath the cap of the relay to remain hidden. I would really like to create a relay to simulate the advantages of using a voltage drop test vs testing for voltage. I am thinking a very high value resistor soldered between the contacts of the relay. Do you think this would work? Any other ideas?? I am looking at creating the most dynamic training for new technicians so please don't hold back on ideas.

 

i do not approve of sabotage tactics as they clearly can be both used and abused.

if this is really meant with training in mind, it is better to make a black box with a plug and several terminals. then ask students to interact with the box terminals and figure out what is inside and how it is connected. to present different problem, just swap the plug. this is flexible/expandable and does not require or depend on mischief.

 

I assume you mean voltage drop for the coil?
If so, AC coil versions react differently to DC coil versions.
I think this would be more useful to future techs to see how each coil supply reacts to changes in voltage!

 

Exactly what do you mean by "Bugging"?

 

" I am trying to think of different bugs I can make "
I interpreted that to "Come up with an idea"

 

I think he means "creating faults" (AKA bugs), in fact as lore would have it Grace Hopper famously found a "bug" in a computer when a literal bug was caught between relay contacts.

No, she didn't coin the term, but she found it funny enough to—it is said—tape the offending mouth in her lab notebook.

 

I think the voltage drop idea is to simulate bad contacts and the drop you would experience from drawing more power than the damaged contacts can conduct.

 

I think he means "creating faults" (AKA bugs), in fact as lore would have it Grace Hopper famously found a "bug" in a computer when a literal bug was caught between relay contacts.

No, she didn't coin the term, but she found it funny enough to—it is said—tape the offending mouth in her lab notebook.

To be blunt, my first thought was akin to placing a covert device inside an automotive relay for nefarious purposes. Honestly. But then it occurred to me that he was talking about the exact point you make. And yes, I agree, probably means "Creating a fault condition" just like the experience I had when first working for an aircraft manufacturer. During the interview and exam I was given a board and was asked to determine where the fault was and how to fix it.

As for the term "Bug", I believe it was a moth trapped between the contacts when she asked her peers to wait while they debug the machinery. Literally to remove the bug (moth) from the contacts. (Gosh, hadn't thought about that in a very long time)

 

I am trying to think of different bugs I can make underneath the cap of the relay to remain hidden.

Nice try Mr. Shade Tree Mechanic.