PTB? Electronics related (Apparently)

[RastaManBob]

Hi,

My girlfriends brother has recently started an Electronics GCSE and for his homework has to find some definitions. One of these is PTB.

As I study electrical and electronic engineering at University they expect that I'll have a clue but I'm no help! Does anybody have an idea what PTB could mean in an electronics context?

I can only suggest that it is a typo (I originally thought he meant PCB but they have to do that as well as PTB) but he is sure that the teacher explictly mentioned PTB several times.

Anybody able to help?

Cheers.

EDIT: All I can find on the net is something related to soldering tips...?

EDIT 2: Think he may be after "Push-to-break"... Wouldn't have got that at first as I'm more used to used "Normally Open/Closed", etc... But cannot think of anything else that would be at the sort of difficulty he'd be after.

 

[Aod]

push-to-break sounds about right.

certainly, thats what i'd call such a switch.

 

[csmager]

Switches can be known as PTB and PTM (Push to break and Push to make). That'd be the only thing I can think of!

 

[brummie]

All i could find

http://www.abbreviations.com/PTB

 

[SourChipmunk]

Wow, I'd never heard it called that before. Looks to be a UK thing for sure. In the US we go by Normally Open (NO) or Normally Closed (NC). I learn something new everyday here.


edit: http://www.kpsec.freeuk.com/components/switch.htm

 

[neodude]

In the UK electronics industry NC would mean "Not Connected".

 

[JIM_BOB7813]

Wow, I'd never heard it called that before. Looks to be a UK thing for sure. In the US we go by Normally Open (NO) or Normally Closed (NC). I learn something new everyday here.


edit: http://www.kpsec.freeuk.com/components/switch.htm

I've heard them called both, at GCSE (Electronics) it was PTM/PTB, at uni it was NO/NC (not really electronics though).

 

[GeForce]

Definitely Push To Break