Quoted from Quench:Many people consider the Vocalizer to have clearer speech than the Squawk & Talk. If you have the Vocalizer setup, I'd probably leave it.
In any case, below is the Squawk & Talk connector info in my Flash Gordon manual.
Note: the Squawk and Talk connector has an extra G.I wire added at pin 7 - it's used to create a -5V power supply for the S&T speech chip. The other wires and placement are the same as the Vocalizer 15 pin connector.
The last picture is included because it has a small strobe connector table not included in the wiring schematic in the IPDB manual.
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I had no sound board in mine when I got it so I could only get the regular squawk and talk board to replace it. So, I have to figure it out....
So, if I read what you are saying - there is only the one plug sent to the S&T and it is the 15 pin connector, no other plugs connected?
I wonder if I have to re-create the -5V from somewhere? I assume I can just tap into a light socket to get the 5volt on pin #7 if I have to.
Thanks - if you have a picture of the plugs and the S&T board mounted that would be great to see just to make sure I am doing it right.
My machine was a $300 box of parts so this is what you get when you do a higher end restore from random parts. But, my restore looks amazing and I am almost done. I have another pinside post on my restore if you haven't seen it -
https://pinside.com/pinball/forum/topic/flash-gordon-lacked-flash-and-gordon