Forum Discussion
Gdetrailer
Dec 29, 2015Explorer III
RoyB wrote:
Plug a lamp or fan into it and then go to the 12VDC fuse panel and start pulling fuses one at a time to see which circuit it is on. Once you find the fuse that shuts it off then read the value of the fuse to get an idea how many AMPS the circuit is rated for.
Roy Ken
My take is I don't think the OP was question how much current the CIRCUIT will support.
The question is how much current will the 1/4 phone jack support.
Answer, not much.
Per HERE a 1/4 phone jack is rated at 1A (ONE AMP) of current at 25V DC..
Personally I have a severe dislike to using this type of jack for ANY NON CURRENT LIMITED VOLTAGE APPLICATIONS such as this.
It was NEVER, EVER INTENDED TO SUPPLY POWER.. The use of this type of jack to supply power has some potential pitfalls..
The main pitfall is when the plug is inserted into the jack there is a point where both connections (ground and hot) can connect and create a temporary short..
This type of jack was designed for HEADPHONE or low voltage AUDIO purposes (remember the old Telco "switch boards" which used this type of connector)..
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