Galaxy 66

[smoke blower]

I could kill the TalkBack at J15 would that work

[sonoma]

yes that will work if it is the lead for the talkback.

[smoke blower]

Well I got the relay today and tried it but it didn't work. I bought the same relay that you have pictured. I have a 470 cap from the wire where the mirror board would be because this radio doesn't have a mirror board then to a variable from that to #87 then #30 to the rear hole of J3 and 87A to the front hole of J3 #86 to bare lead of r138 and #85 to ground but it doesn't work at all

[smoke blower]

The relay is the Omega AU-7 the same one in you pictures of your mod

[smoke blower]

The picture of your mod I posted has the numbers of the post beside them and says what number post goes where and I did that

[smoke blower]

I guess I should say the numbers are beside the post on the relay itself

[sonoma]

if you followed the lay out that Andy did it should work. you have to put the input on the trace since it does not have a mirror board. I do not pay any attention to the numbers. I check the pins of the relay to see what ones are the relay to activate it then you have 2 pins that when the radio is unkeyed one pin does nothing and the other pin lets the audio into the speaker for regular funtions. then when you key up the radio the other pin activates the talkback. I have no idea what you are doing wrong. that is a very simple mod to do.
when you key and unkey the radio does the relay click?

[smoke blower]

Sorry I got it now it's working

[sonoma]

good deal. does it sound alright.

[smoke blower]

Sounds very good better than I have every heard talkback very clean sounding

[sonoma]

take some hot melt glue and stick the relay to the side of the case or some where it does not roll around inside the radio. you do not need to short some thing out. I know that in a radio with a small transformer in it I stick the relay to the top of it. makes it look nice and neat.

[sonoma]

also did you get the variable to work as you wanted?

[smoke blower]

I used a 1 k pot and seem to work good as well. My mistake I didn't hook up the ground return

[sonoma]

the relay mod is what I went to years ago when drivers wanted talkback because it sounded so clean. better than pulling a diode to get talkback.

[smoke blower]

Yes it's a great mod that's forsure and yes I will hot glue it in a good place inside the radio

[sonoma]

just remember this mod for future installs so you can do it on others. I usually buy very small relays since the audio does not take much power to feed through the relay. the ones I use have small through the hole pins on it. so that helps to make a smaller fit in the radio.

[smoke blower]

Yes I am putting it in my new note folder and also have pictures as well thanks again

[sonoma]

here is an example of the relays I use and you can get them for about 1 dollar each.I get the 12 volt versions. since the corona virus not much listed from china right now. this is just to show you what I use.
deleted my last portion of the post. sorry about that

[smoke blower]

Gotcha thanks for the info

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Added 9 months 19 days 1 minute 32 seconds after previous.
Galaxy 66
Would the connection points be the same on a galaxy 99v for the relay TalkBack mod I have a new relay