JavaScript is disabled
Our website requires JavaScript to function properly. For a better experience, please enable JavaScript in your browser settings before proceeding.
three screw
A cheater plug, AC ground lifter or three-prong/two-prong adapter is an adapter that allows a NEMA 5-15P grounding-type plug (three prongs) to connect to a NEMA 1-15R non-grounding receptacle (two slots). They are needed to allow appliances with 3-wire power cords to plug into legacy ungrounded (two slot) receptacles found in older buildings. The use of such an adapter avoids the need to replace receptacles, but is potentially hazardous if the grounding tab is not connected to electrical ground. These adapters are illegal in some jurisdictions, in particular throughout Canada. A safer and more reliable alternative identified in the US and Canadian electrical codes is to replace the outlet with a Ground Fault Circuit Interrupter (GFCI) breaker outlet.Cheater plugs are also used to break ground loops in audio systems. This practice has been condemned as disregarding electrical safety. A safer and more reliable alternative is to use an isolation transformer made specifically for this purpose.
View More On Wikipedia.org
View More On Wikipedia.org
-
O
Ruger Super Blackhawk .44 Mag "three screw" without factory conversion
-
- For Sale
- $800
- Portland
- Oregon
Ruger Super Blackhawk single-action revolver chambered in .44 Magnum. This revolver is configured with the original "three screw" frame design and has not undergone the factory conversion to the transfer bar system. Based on its serial number range, production dates to approximately 1968...- Classified Ad
- Handgun Classifieds
- oregonlaw76
- Replies: 0
-
-
Ruger 3 screw blackhawk 357
-
- For Sale
- For Trade
- $450
- Fort Rock
- Oregon
Ruger Blackhawk, 357 magnum,3 screw unaltered, I believe it's a 1970-1971 model. 6.5 " barrel, and in good condition, cylinder and trigger are very smooth,shows very little signs of use, some blueing wear at the end of the muzzle. Includes the factory box. Possible trade for a 1911 ( preferably...- Classified Ad
- Handgun Classifieds
- Hlm
- Replies: 0
-
-
Ruger Blackhawk .357 Magnum Three Screw 1970
-
- For Sale
- $500
- Sherwood
- Oregon
This is from an estate and I do not know the full history. Looks to be in very good condition, shows some holster wear around the muzzle. Serial number should be 1970 production. $500 no trades- Classified Ad
- Handgun Classifieds
- JohnnyHammersticks
-
- Tags
- blackhawk magnum screw three screw
- Replies: 3
-
-
Ruger Single Six Three Screw - 1972
-
- For Sale
- $450
- Lake Oswego
- Oregon
Pending This is an original Ruger Single SixThree Screw .22 and.22 mag revolver vintage 1972. Original means it retains its 2.5 lb trigger and did not go through the recall. Recall still available if you want the gate, but it's a dream to shoot in its original condition. Only wear is on barrel...- Classified Ad
- Handgun Classifieds
- dplev4
- Replies: 2
-
-
Ruger Single Six, three screw, Nickel
-
- For Sale
- $250
- Tualatin
- Oregon
Just shot a opossum with it last night! I got this 3 screw on a trade and it came with no cylinders, and no box. I bought two cylinders off eBay, one 22lr, one 22mag. Both cylinders are stainless. Shoots rather well. I shot a gopher with it yesterday. The first time I shot it in years. Shoot me...- Classified Ad
- Handgun Classifieds
- jeremiahjack
- Replies: 3
-
-
Ruger Blackhawk 3 Screw. 357 Mag
-
- For Sale
- $545
- Keizer
- Oregon
This Ruger Blackhawk is a 1970 vintage three screw in 357 magnum. Barrel is 6.5 inches. Some light holster wear on the end of the barrel. Backstrap has a very slight ding. Revolver has NOT been converted to transfer bar. I can ship to your FFL for $20.- Classified Ad
- Handgun Classifieds
- ETs Dad
-
- Tags
- blackhawk screw three screw
- Replies: 0
-
-
J
Ruger Single 6 Three Screw
-
- For Sale
- $275
- Grants Pass
- Oregon
Ruger 3 screw in 22LR. Some holster wear and surface rust on cylinder. With holster- Classified Ad
- Handgun Classifieds
- JSpring123
-
- Tags
- ruger screw single six three screw
- Replies: 5
-
-
USED Ruger Single Six
-
- For Sale
- $280
- Mulino
- Oregon
This is a used Ruger Single Six 22 Revolver. The firearm has some wear on the left side behind the cylinder. The serial number is 62-12597. USPS Shipping of $30 or $10 OSP background fee for local pickup. The owner is not interested in trades.- Classified Ad
- Handgun Classifieds
- Ler1993
- Replies: 6
-
-
Ruger Single Six - Three Screw Old Model - 9-1/2 inch barrel
-
- For Sale
- $1000
- Tacoma
- Washington
Ruger Single Six Convertible Three Screw Old Model. 9-1/2 inch barrel. Original wood grips. Serial no. 4033XX. Date of manufacture 1964. .22 long rifle cylinder and .22 mag cylinder included (with the original red pouch.) No case or papers. Rear sight has a blemish on the top right corner –...- Classified Ad
- Handgun Classifieds
- John Clum
- Replies: 3
-
-
RUGER three screw Single Six convertible- now with lower pricce
-
- For Sale
- For Trade
- $425
- Tacoma
- Washington
good condition, manufactured in 1963 I have a ruger letter with all info from the previous owner. Traded into this a while back and never fired it. Non convertibles of this vintage seem to be going for $500 and up on gunbroker. Not sure what I want to trade for, just not a fan of plastic except...- Classified Ad
- Handgun Classifieds
- coop44
- Replies: 21
-
-
Ruger old model single six with extras
-
- For Sale
- $550
- Beaverton
- Oregon
This is an Old Model Single Six with 22 LR and 22 Mag cylinders. This revolver is the three screw version and has not been converted. Includes the manual as pictured. Buyer pays transfer fees- Classified Ad
- Handgun Classifieds
- satinwood
- Replies: 0
-
