Are you referring to the actual connections or in what order the components are connected together?
I would solder the connections and use a battery clip on flying leads.
Now - in Australia, we make these using small plastic boxes with a surface mount
receptacle and the
LED(s) mounted into the box. The battery, wires and
resistor are inside. Use either a battery clip or some double-sided tape to keep the battery from moving.
Now - in the US - you guys have more
plug and
receptacle types and I really have no idea as to the size, shape and configuration of them all. Looking at the
GAM check on the web (and having no size reference to work from) I would imagine that you could fit it all the components into the actual
receptacle. You would have to use a smaller battery and I would imagine that a 3V lithium would do the trick. If so, get one with leads or tags already on it as it is much easier to solder to them than to the battery directly.
Essentially you connect one side of the battery to the Hot
connector in the
receptacle. For this lets say you connected the positive side of the battery to hot. You then connect the negative side to one
leg of the
resistor and the other
leg of the
resistor to the
Anode of the
LED (the
anode is the longer of the two legs). The
Cathode (shorter of the two legs) then connects to the
Neutral connector of the
receptacle.
Note: The value of the
resistor varies depending on the size of the battery that you use:
1.5V use no
resistor
3V use a 70
ohm resistor
6V use a 220
ohm resistor
9V use a 370
ohm resistor
These calculations are based upon a 20mA
LED and uses the formulae:
R=(E-1.7) x 1000/I where:
R= resistance
E=
voltage
I= the
LED current in milliamps
So for a 9V battery R= (9 – 1.7) x 1000 / 20 = 365 (round up to 370)
I made a mistake on my initial post when quoting the resistance, which I have now fixed.
Also, if you are unsure as to the
anode (+) and
cathode (-) legs on the
LED, have a look at the actual plastic ‘light’ part. The flange that runs around the bottom of this will have a
flat side. The
flat side corresponds with the
cathode.
To test it, use a piece of
wire to short the Hot and
Neutral connectors.
I think that whatever
receptacle you use, you will have to make up adaptors if you want to use more than one type of
plug.
Now – if you wanted to add the Hot to
Ground short test, all you have to do is add an additional
LED. To do this you would solder the
anode of the second
LED to the
resistor, at the same
point to which the first
LED connects. The
cathode of the second
LED then connects to the
Ground pin on the
receptacle.
PM or email me if you have any problems.