Modified EUMIG 820 Sonomatic for 1/4" audio jack

[Gregory Oliver]

I couldn't find any sort of compatible adapter here in the US so I decided to add a jack to the audio in order to capture the super8 sound output to my computer. I had to drill a hole in the case and solder the wires to the speaker so that they didn't interfere with the internal workings.
It give a great sounding capture and I use Audacity software to record and trim/stretch/shrink the audio to match the video that I captured at 24FPS.
here is the results:

[Gregory Oliver]

[Maurice Leakey]

......I had to drill a hole in the case and solder the wires to the speaker.....

Gregory

Why did you do that?
There is a socket for an external speaker on the rear of the projector, alongside where you inserted your new socket.


Maurice

[Brian Fretwell]

In case you are not aware of the type, Gregory, that is a DIN loudspeaker socket with one round hole and one oblong and using it will cut off the connection to the internal speaker.

[Paul Adsett]

If you are connecting the speaker output up to a computer or amplifier, don't you need to put a resistor in series to drop the high level signal at the speaker terminals?

[Gregory Oliver]

The reason for the mod was to take the audio output to an RCA type jack (like a headphone jack) instead of the existing 2-wire jack already built in. I wasn't able to find an adapter that would work and wanted to leave the existing jack as it was in case I later decide to sell it to someone on the other side of the pond. Drilling the hole was necessary because of the configuration of the 1/4" jack. I take the other end of the cable to a line-in on my PC and get a well modulated sound. Trust me. It works.