Does anybody know this type of receptacle - appears to be line voltage 240V with ground - circa 1920-1950. What type of appliance was it used for? Thanks guys
I don’t think so guys.
Look at the original photo again.
The slots don’t line up the same.
yes, the ports are offset - ??
Wiki… where you get all your facts?
Are you in the U.S. of A?
Appears to be 240v? Did you check? What size and Type conductor if you can trace?
May be a radio antenna plug.
This is one of those topics where Mark Shunk always came through for us.
Yepp!! I think the moderated board drove him away!
James was correct.
Source:
http://nethelper.com/article/AC_power_plugs_and_sockets
U.S. Combination duplex outlet
http://apiimages.nethelper.edgecaching.net/commons/thumb/2/2a/Combo-outlet.jpg/135px-Combo-outlet.jpghttp://apiimages.nethelper.edgecaching.net/commons/thumb/d/dd/Tslotplug.jpg/195px-Tslotplug.jpgLeft: An extremely old “Nurpolian”-brand black parallel and tandem duplex outlet rated at 250 V 10 A (although this type was normally supplied with 120 V). Right: T-slot duplex outlet.
The parallel and tandem outlet accepts normal parallel NEMA 1-15 plugs and also tandem NEMA 2-15 plugs. Both pair of receptacles are fed internally by the same supply. A more recent and fairly common version of this type is the T-slot outlet, in which the locations of the tandem and the parallel slots were combined to create T-shaped slots. This version also accepts normal parallel NEMA 1-15 plugs and also tandem NEMA 2-15 plugs. Incidentally, a NEMA 5-20 (125 V, 20 A) or 6-20 (250 V, 20 A) plug with a missing ground pin would fit this outlet. This type is no longer available in retail shops since the 1960s.
While i have seen this receptacle quite often…
I have yet to see a fixture (tandem plug) that could use this type of receptacle.
I understand it to be that it hasn’t been available since 1960, and if you read this,
This version also accepts normal parallel NEMA 1-15 plugs and also tandem NEMA 2-15 plugs. Incidentally, a NEMA 5-20 (125 V, 20 A) or 6-20 (250 V, 20 A) plug with a missing ground pin would fit this outlet.
It seems to have acepted later plug sets with two flat blades.
Yes… parallel plugs will still work
has anyone ever seen anything with a tandem plug?
Not in my neck of the woods Joe.
before my time also
lol
Are you sure about that?:mrgreen:
Antique clocks used to use these receptacles. They were commonly mounted in the middle to upper section of the wall. The ones located near the floor were commonly used for in wall air conditioners. They had few other purposes.
And I’m The new guy sheesh. lol
Wall Air Conditioners in 1910?