03-02-2015, 07:43 PM
here is the deal.
The way it is hooked up from the factory, there should be three wires. green is 16ohm positive, black is ground, and then there should be another wire it might be yellow, but hard to say.
regardless, from the factory, the ext speaker jack is hooked up so that all of the wires from the transformer connect to it. The jack has two shorting connections, a shorting connection for when nothing is plugged into it (that is where the green wire originally went) and shorting connection that gets engaged when there IS a plug inserted into the ext speaker jack. (The 8 ohm tap whatever color that is goes there)
The internal combo speaker positive wire connects to the tip terminal on the ext speaker jack.
SO what you need is a shorting 1/4 inch jack
if I understand you correctly You want to maintain the original fucntion of the jack. So leave everything stock, and just connect the tip and ground terminals of the extension speaker jack, to the tip and ground of a new "main speaker" jack. then do as fender did, and connect the shorting connection to ground, so that if nothing is plugged in, your output is shorted, and if someone were to try and play without a cab plugged in, it would blow a fuse (hopefully before it blew your tubes and output transformer).
take a picture of your speaker jack, and I can tell you if it is still wired correctly.
-steve
The way it is hooked up from the factory, there should be three wires. green is 16ohm positive, black is ground, and then there should be another wire it might be yellow, but hard to say.
regardless, from the factory, the ext speaker jack is hooked up so that all of the wires from the transformer connect to it. The jack has two shorting connections, a shorting connection for when nothing is plugged into it (that is where the green wire originally went) and shorting connection that gets engaged when there IS a plug inserted into the ext speaker jack. (The 8 ohm tap whatever color that is goes there)
The internal combo speaker positive wire connects to the tip terminal on the ext speaker jack.
SO what you need is a shorting 1/4 inch jack
if I understand you correctly You want to maintain the original fucntion of the jack. So leave everything stock, and just connect the tip and ground terminals of the extension speaker jack, to the tip and ground of a new "main speaker" jack. then do as fender did, and connect the shorting connection to ground, so that if nothing is plugged in, your output is shorted, and if someone were to try and play without a cab plugged in, it would blow a fuse (hopefully before it blew your tubes and output transformer).
take a picture of your speaker jack, and I can tell you if it is still wired correctly.
-steve