12v At The Work Bench

[Meanwhile]

I didn't have a transformer and got tired of using clips off a jumper cable. I sometimes find didn't it useful to test 12v items at my desk/bench with my spare battery. I have some electric reels so I used a cord with clips to make a test lead. Just an idea. This is a Dawai cord.

 

[Hookup1]

I have a power supply out of an old PC. The disk drive connectors have both 5 And 12 VDC. I use it to spool my electric reels.

 

[Ky Grady]

I use a 12v jump box for bench power if needed.

 

[TopsulTime]

I use a control transformer out of a furnace (I'm a hvac contractor), made a bridge rectifier with 4 diodes, a load resistor, a filter capacitor, and a zener diode.

I was in electronics before hvac. I made that contraption because a drill charger got damaged but now modified it to 12v to bench check/input coordinates into chartplotters and test whatever.

 

[everwhom]

I use a control transformer out of a furnace (I'm a hvac contractor), made a bridge rectifier with 4 diodes, a load resistor, a filter capacitor, and a zener diode.

I was in electronics before hvac. I made that contraption because a drill charger got damaged but now modified it to 12v to bench check/input coordinates into chartplotters and test whatever.

Reminds me of intro to electricity and magnetism lab freshman year!

 

[everwhom]

I have a power supply out of an old PC. The disk drive connectors have both 5 And 12 VDC. I use it to spool my electric reels.

I do the same - had a dead PC from the 90's and pulled the power supply out of it!

 

[Fishtales]

I did a transformer for this on my WB -nice add. Used it for testing various items and came in handy when learning my electronics via simulation mode.

 

[tish]

I use a dedicated bench power supply, mine will switch between 3,6,9,12 volts and cost about $40-$50 on Amazon. It does not push out many amps so you're not going to be bench testing a starter or something like that with it, but for most of the stuff I work on (antique vehicles mostly and occasional fun electronics stuff with my 9 year old) it comes in really handy.

 

[greauxpete]

Suacopzar 12V 10A Car Power Adapter Female Auto Cigarette Lighter Plug 10ft, AC 100-240V to DC 12V 10A 120W Power Supply Adapter AC to DC Converter Transformer for Car Powered Device https://a.co/d/hAOUmDX

 

[Fishtales]

I remove or cut off the cables from my old electronics (all types) and hang on wall in my shop. Can usually find a connector and cables for any use that way.

 

[Harrysea]

If you have a 12v cordless drill or some other tool that uses a 12v power pack, you can plug your wires into the battery receptacles. The polarity is usually clearly marked. You may not want to operate electronics this way for a long period, but it’s a convenient way to test things out.