August 15, 2023 - ... Try to add the jack plug wires Left and Right across the volume control marked (here) in red, use the ground near to the volume control, disconnect the tape heads wires, and see if it works,.View attachment 300455

February 25, 2017 - A phone (output impedence of about 4 ohms) can drive a pair of 16 ohms speakers - it doesn't sound great but it is not going to explode. I would recommend an amplifier. ... Click to expand... Actually I was thinking of the AUX OUT on my amplifier. It isn't meant to drive headphones, more like a higher impedance like another amp, a slave amp or something. But you're right, the headphones jack is often called the AUX Output. My car stereo has an input for AUX and it's on the front end of the head unit.

March 26, 2018 - Yes, basically I have an old radio ... So all I did was take an old cable with an old 3.5mm jack, cut one end off and connected the left, right, ground wires to the appropriate pins on the amplifier chip....

September 2, 2011 - If you just want to connect an ... is to get a cheap headphone cable, preferably a mono, cut off one end and connect the ground/braiding to the negative (-) speaker jack and the center wire to the positive (+) speaker jack...

September 4, 2021 - Start with the volume control turned down and increase slowly, unless it gets very loud immediately and starts to distort as soon as you rotate it, you probably don't need anything else.

June 21, 2017 - Some mobile PA amplifiers have ... when CB was new. Back about 1965to 1970.. OR, connect the external (AUX) input on the PA amp to the headphone output of an MP3 pocket player....

February 18, 2022 - Have you tried injecting a signal at the front or rear pre-out jacks? From the schematic they appear to be directly tied to the output of the electronic volume IC which connects to the power amp. ... The datasheet for the TDA7384 power amp IC says with a 13.7V supply its output is 35 Whats with severe clipping distortion or 15 Watts per channel into 4 ohms with low distortion. The output power is 8 Watts per channel into 8 ohm speakers at low distortion.

October 20, 2014 - HI, I have a vintage radio (one ... and one for the right. I added a LINE-IN to this radio by switching the input to each chip (Pin 3) to a 3.5mm stereo input jack. I added one 3.3uf......

August 26, 2022 - You need a 12v supply to the ACC pin and ground, the output is from the mic+ & mic- terminals, these are fet mics and sometimes they have a balanced output .

January 28, 2020 - The Harman Kardon speaker uses a 19V power supply. Where will you find 19V in your car? ... So i cant just inject after the DACs? so i have to cut the traces and inject the audio into the first line of capacitors after the DAC? also, i have a few adjustable boost converters laying around that will do the trick when it comes to powering the device. ... The DAC has audio signal outputs. Your car radio audio signals are also outputs that might need attenuation.

November 2, 2019 - First, although it is difficult to discern, it looks as if you’ve shorted the signal lines to the speakers. From the jack, the cable should have 3 or 4 wires which split into two wires for each speaker.

March 15, 2023 - As illustrated in Figure 8, you can use a mono-to-phono connector extension cord plugged into the headphone jack of the receiver/CD player. and alligator clip jumper wires connecting the mono tip of the cord to the input terminals of the tube ...

September 21, 2015 - If you are worried about the tape and you have some soldering skills then you can make an adapter using a plug and jack. Only 2 wires are needed -- connect tip to tip and ring to ring.

October 24, 2017 - There are a two pairs for headphones, ... have only three contact points for four wires. Hence the COMMON (or GROUND) from each channel are joined together at the plug and jack....

June 23, 2011 - For instance you can change the volume of the source to give a volume similar to other line-in sources you might have, such as a radio tuner. ... Like wayneh said, it will work, just turn way down so you don't throw the speaker cones out in the floor when the "plug in" click happens. ... Once upon a time I was doing something along the same lines and things went wrong. I was using the headphone output of a guitar amplifier to feed into a multitrack recorder.

September 23, 2016 - It can cause problems like cold joints if not pre tinned and you crimped the wire you can see it got hot headphones that plug in small jacks have harder cables to solder because of the needed reinforcement to make a strong cable. ... This http://www.radiomagonline.com/oldradimage/images/archive/eng_wire_spr03_detail.JPG pic in the above link shows how to make a hole where you pull the inner conductor insulation through.

July 20, 2020 - Hello all, So let's start: - I want to add an input option to my old car stereo. I have schematics. - I am not an expert, but I have some xp (arduino and the like) and patience. - This "project" wants to happen for the fun of it. I could spend 30 euro and purchase a chinese "stereo" to achieve...

February 19, 2020 - And a benefit is that you will have room for higher capacity batteries. ... For connecting an external source to the headset you will need a small stereo jack with switches to disconnect the internal receiver from the speakers.

July 11, 2018 - The connector from the cd reader to the mother is a 14 pins ribbon. ... When your car doesn't have Aux you simply purchase a "FM Transmitter" that your aux device plugs into and you set your radio to the proper FM channel and it plays the aux.

September 25, 2022 - (See Figure 2 of this link https://www.digikey.com/en/articles/a-deep-dive-into-audio-jack-switches-and-configurations To complete your project easily, you should get the Jack on the attached datasheet above with the -5 suffix instead of the -3S suffix you have. see figure 5 in the link (same link) https://www.digikey.com/en/articles/a-deep-dive-into-audio-jack-switches-and-configurations not that the jack with the -5 suffix has two switching elements (one for each stereo channel). ... The 35-3S is the same as the 35-3 but with a switch. 35-2 is simple, 1= ground, 3=signal. Headphones 1-3, signal=1-3 32-2s, the switch disconnects the speakers.