[jcassity]

i have this am/fm zenith running now and its been in use by the wife while doing things in the kitchen.
we were watching some youtube vids on various things and came across D-Labs and Mr Carlson's Laboratory where aux jack mods came up on tube radios.

Here ,,, Terry at D-labs shows how he did an aux jack to a console set and he did up a schematic.


in my case i want to add the jack to the cardboard back of the radio... so it wont actually be mounted to the metal chassis.

i am checking to see if i have a jack that makes and breaks contacts when you slip your modern day smartphone head phone jack into the slot
this way i wont have to add a toggle switch to select radio signal or smart phone.

in this D-Labs vid, terry mentions a 10k resistor used to simulate the headphones which is tied to this jack.  he is mounting his to the chassis though,, 
https://www.youtube.com/watch?v=j8YeJ0T3DpI


can someone help me tie a jack into this radio schematic?,, a sketch or edit to the pic i am posting?

i think i simply intercept the left side of the volume on the attached print and tie this to my two center contacts of my jack.  if its the type that breaks contacts inside,, then i wont need the toggle.  

there were a lot of warnings about doing this to transformerless sets but i think thats because its assumed you are mounting your jack to the metal chassis,, which will not be the case for me.

my vol control is in the lower right of the print just above the filter caps......