25 votes

How to Connect Modems to Wall?

That's a keyhole slot for a screw. It's not specific to a modem (though I'll keep using the word here). In this case it's actually a double keyhole. The idea is that you put a screw into the wall with ...
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  • 3,964
24 votes

What type of connector is this, and how do I remove it?

That right there is a crimp connector. Few ways to remove one, mostly you want to avoid damaging wire and losing length. It's a compressed ring. First thing I'd try is side cutters. Cut between the ...
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  • 2,203
18 votes
Accepted

Help in identifying a mystery wall socket

Thanks for providing the "opened" picture, which clearly reveals that this is 300 ohm TV (and/or FM radio) antenna twinlead. Not quite as obsolete as a buggywhip, but pretty close.
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  • 137k
12 votes

How do I remove this connector from a solid electrical wire?

These don't get "removed", they get cut off. Snip the copper solid wire at the end of those connectors, strip off the insulation and then use wire nuts or some other approved connector to ...
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  • 55.5k
11 votes

How do I read the markings printed on the outside of electric wires?

TAIFULONG E204798 FU AWM 3321 VW-1 IBAWG 150°C 600V FENG TAI ELECTRONIC. First, TAIFULONG is the cable brand. E204798 I do not know. (comment from Harper: this is likely the UL "File Number"...
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  • 634
11 votes
Accepted

How to properly rewire these splices?

These "warm" junctions don't account for 135 watts. I suspect one junction with ~100 watts of heat emission, and I expect you'll see thermal damage there. Aluminum wiring combines very poorly with ...
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10 votes

Why don't 12-10 AWG terminal connectors fit 10 AWG PV wire?

PV wires use fatter insulation As you have found out the hard way, PV wire uses much thicker insulation than ordinary THHN building wires, so it won't fit into ordinary insulated-type crimp terminals. ...
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10 votes
Accepted

Why don't 12-10 AWG terminal connectors fit 10 AWG PV wire?

I resolved this issue and am posting what I found. Comments and answer so far were in the right direction, thanks. The first bit of feedback I got was the shave down the insulation on the PV wire, to ...
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  • 1,101
9 votes
Accepted

How to Connect Modems to Wall?

This really shouldn't be an answer since Chris H.'s answer nailed it (and should be accepted), but I want to address several comments from several answers, and this is far too long for a comment on ...
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  • 30.3k
8 votes
Accepted

Why am I getting noise with my network cable connectors?

Pin 6 is not crimped. Your crimp die is defective or you need to try again. All the pins should be at the same level. But really, punch-down into jacks and buy patch cables as already suggested. ...
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  • 137k
8 votes
Accepted

Cable With Same Plug And Slot (RJ11), What's The Purpose?

That looks like a DSL filter. DSL "piggybacks" on a regular voice line. The DSL modem will automatically block out voice frequencies. DSL filters are used on all connections EXCEPT the DSL modem to ...
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8 votes
Accepted

How many wires can safely be secured in a Marrette 33 wire nut?

Here is a catalog from Thomas & Betts, the makers of Marrette connectors. Pages 14-15 cover the black high-temperature wire nuts including the Model 33. The graph on Page 15 shows limits of "Min....
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  • 221
8 votes

Polaris type electrical connectors terminology

Your wire is #8 AWG, copper since it's a 40 amp circuit. So you need a connector that will fit that wire. The sizing on the connectors states what wires will fit in the individual holes in the ...
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  • 55.5k
7 votes

How do I read the markings printed on the outside of electric wires?

What you have is stranded #18ga tinned copper wire at the lights. This is completely typical of this type of light. Connecting that to #12 or #14 household wiring with the proper sized wire connector (...
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7 votes

How many wires can safely be secured in a Marrette 33 wire nut?

Don't reuse old nuts, or ones of indeterminate origin. Some wire-nuts are single-use; using them destroys their gripping power. Wire-nut technology has moved in leaps and bounds in the last 10-20 ...
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7 votes

Is this okay ? Meets the code requirements

Are you talking about this circled bit? If so, this looks fine. It's just used as nailing surface for drywall -- it's not structure. It kind of looks like someone made the bottom of it a bit short, ...
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  • 28.3k
6 votes
Accepted

Can you disconnect and reconnect a gas flex pipe?

International Fuel Gas code prohibits the reuse of any Pipe, fittings, valves, or other materials. International Fuel Gas Code 2012 Chapter 4 Gas Piping Installations Section 403 Piping Materials 403....
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  • 128k
6 votes

What brand are these pex threaded T connectors?

These are actualy "Qest" (pronounced "quest") brand fittings that were more popular 10-15 years ago (maybe further back). I remember in the early 2000's these were sold at Home Depot and Lowes back ...
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  • 26.6k
6 votes

What radio antenna connector is required? (FM/AM)

This is a "Motorola" type connector. These have been around in automotive radios since nearly the beginning of auto radios which were introduced by Motorola. Motorola is basically gone but their ...
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  • 20.5k
5 votes

Connect 1/2" supply line to 3/8" outer diameter faucet line

You need a brass connector. "1/2" female iron pipe" (1/2" FIP) is the size of the female connector on the end of the hose coming out of the sink plate in your picture; "3/8" female compression" is the ...
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  • 33.5k
5 votes

Stranded wire gauge too small for push-in connector(USA)

This cannot be a problem The connectors are listed for a wide range of solid and stranded wire. A wider range, in fact, than you are allowed to use inside fixtures, which must be no smaller than #18 ...
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5 votes
Accepted

What radio antenna connector is required? (FM/AM)

That connector will accept the coax type connector typically found on the end of an automotive type antenna cable. One will look like this: Picture Source
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  • 61.7k
5 votes

Polaris type electrical connectors terminology

Electrically speaking, such a connector is fine Mechanical setscrew (Polaris™) connectors are what is called range taking, which means they can accept any wire size within their specified range....
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5 votes

Polaris type electrical connectors terminology

Each connector covers a range of sizes, the size ranges overlap to allow joints between wires of different sizes. A complication is that Americans use different systems to measure different sizes of ...
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  • 4,202
5 votes
Accepted

Can solder be used instead of quick disconnect terminals?

Soldering this connection is illegal and unsafe; it's prohibited in AC mains wiring by NEC, and in appliances by the UL White Book; both proscribe conditions in which soldering is OK, and this is ...
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5 votes

Why does Simpson Strong Tie require nails that would protrude beyond the rafter they're penetrating?

They don't. The table lists rated uplift loads for particular installation scenarios, presumably with the largest nails that offer practical benefit. It doesn't list installation requirements. See ...
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  • 106k
4 votes

Mount pergola post at an angle

At the ground, you're mostly concerned with keeping the posts located. You don't want bumps to slide them around. A simple steel pin or bolt in the concrete is adequate. If you like, use a short stack ...
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  • 106k
4 votes
Accepted

Connecting TV to better external speakers: Type of connection

According to the manual, the AV output section has L and R audio outputs that you could connect to an audio amplifier. The "Video" connector will be composite video, the L and R audio outputs will be ...
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4 votes
Accepted

How to handle 4 wires using 3-port AlumiConn connectors?

You have two options here You have two options here. Either you can daisy-chain AlumiConns as you describe, using 12AWG copper THHN for the jumper wire, or you can use a single Al/Cu rated mechanical ...
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4 votes

Replacing a ceiling rose with a led light without using wire connectors

Taping wires (rather than using proper wire connectors) is a recipe for burning your house down. Whether it's just two wires or a whole bunch, a taped connection is prone to loosen, and arc, and ...
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  • 137k

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