Audio Out for Eumig 824 Sonomatic

[Rob Young]

Just to throw this in here regarding my Beaulieu (I have no idea about the Eumig) but I did exactly what Brian did and bought a DIN to 4 phono plugs lead and simply tried each until I found the 1 with output.

I saw 1, because, although the Beaulieu (circa 1979) is a twin track machine, the output is mixed into a single mono output regardless of whether each or both tracks are selected on the machine. I gather that later versions (certainly the STEREO version did have 2 separate outputs). My Elmo ST1200HD certainly does.

So I would hope the Eumig will output 2 separate outputs for each track, but not necessarily so.

[Brian Fretwell]

4RCA? So there are four single
channel audio outputs and you just find which ones have your l and r channels?

2 input, 2 output from that tape deck, which had off tape monitoring.

[Ethan Knightchilde]

I don't have a microscope, but I do have an electrical engineering degree! (Taxidermy school was all filled up!😉)

I'd love to see a scan!

I’ll try to get at least the wiring diagram scanned tomorrow!

[Steve Klare]

I don't have a microscope, but I do have an electrical engineering degree! (Taxidermy school was all filled up!😉)

I'd love to see a scan!

[Ethan Knightchilde]

Eumig 824 IS twin track!

Interesting!

Does anybody have the manual for this one? It would be great if it did two channel line out.

I have the manuals for it but the line out info is almost non-existent. There is the spec line in my original post, and then there is a reference in the manual that says “see the wiring diagram” (which you need a microscope and an electrical engineering degree to read and understand). I’d be happy to scan it if it will help this or a future discussion.

[Steve Klare]

Eumig 824 IS twin track!

Interesting!

Does anybody have the manual for this one? It would be great if it did two channel line out.

[Janice Glesser]

To connect my Eumig 824 to my sound system, I use this type of plug. I have a balanced plug on the other end of the cable, however you can use any other type of plug that works with your sound system.

[Ethan Knightchilde]

My Akai D4000stereo tape deck came with a DIN to 4 RCA plug lead. I have used that it is easy to swap plugs until you get the signal you need.

4RCA? So there are four single
channel audio outputs and you just find which ones have your l and r channels?

[Ethan Knightchilde]

Hi Ethan,

Most S8 sound projectors can't access the balance stripe, the Eumig 800s are included here. Most films aren't stereo, so this usually works out just fine.

As I remember it, I found a cable terminated with the 5 pin DIN that had wires running to all the pins, then I used an ohmeter to pick and choose the wires to pins 2 and 3. I just soldered these into the tip(3) and ring(2) terminals (balanced connection) on the 1/4"plug and then crimped the ears down on the end of the insulation to provide strain relief.

I'm seeing DIN cables with two bare wires on the far end, but so far they all run to the wrong pins!

It's also possible to do it the other way: find a cable terminated with 1/4" plug and solder the stripped ends into the terminals on the DIN. I've found these require a steady hand and a fine soldering tip! I've also had connectors like this melt a little so the pins fall out of alignment, so you need to be quick.

What kind of terminals would you like to plug into? I use a phone jack because I plug into a mixer, but that doesn't apply to everyone.

A 1/4” headphone connection would work fine for me. (It will go into a mixer.)

I am not in front of the projector at the moment, but I recall that the 824 Sonomatic has a switch with positions for playback of stripe 1, 2, or both. Seems very strange that the audio out only sends a mono signal (according to Joerg’s post it would be terminal 3) unless it’s a mix down which would make better sense.

[Brian Fretwell]

My Akai D4000stereo tape deck came with a DIN to 4 RCA plug lead. I have used that it is easy to swap plugs until you get the signal you need.

[Steve Klare]

Hi Ethan,

Most S8 sound projectors can't access the balance stripe, the Eumig 800s are included here. Most films aren't stereo, so this usually works out just fine.

As I remember it, I found a cable terminated with the 5 pin DIN that had wires running to all the pins, then I used an ohmeter to pick and choose the wires to pins 2 and 3. I just soldered these into the tip(3) and ring(2) terminals (balanced connection) on the 1/4"plug and then crimped the ears down on the end of the insulation to provide strain relief.

I'm seeing DIN cables with two bare wires on the far end, but so far they all run to the wrong pins!

It's also possible to do it the other way: find a cable terminated with 1/4" plug and solder the stripped ends into the terminals on the DIN. I've found these require a steady hand and a fine soldering tip! I've also had connectors like this melt a little so the pins fall out of alignment, so you need to be quick.

What kind of terminals would you like to plug into? I use a phone jack because I plug into a mixer, but that doesn't apply to everyone.

[David Strelitz]

[QUOTE=Ed Gordon;n80341]Guys, please read all the posts before commenting on a single post. The first response I posted (#2) included a link to the detailed wiki on DIN plug types.[/QUOTE

So why then confuse the o/p by stating "Din's are all the same" ? Given that he was less than familiar with them, it was at best misleading.

[Ethan Knightchilde]

Thanks again everyone. Two followup questions--
1) Terminals 2 and 3 are what I would connect wiring to. Based on Joerg and Steve's posts, it looks like terminal 3 carries the audio but only Left channel/mono. Does that mean there would be no output from the balance stripe on Super 8 if it's a stereo print? (Disclaimer--I only use this projector for Standard 8, but I figure it doesn't hurt to understand the techie side for future reference.)
2) Steve--if I understand your first post correctly (with the info provided by others), you bought a cable with a 5 pin DIN 180 already wired to terminals 2 and 3. Then you soldered that to a 1/4" TRS plug. Is that correct? Also, any advice on shielding that area at the end of the cable where it gets attached to the 1/4"?

[Steve Klare]

True, but for some reason Eumig didn't state the hot and ground. Being that there is a 50,000 Ohm impedance in the way it's not going to blow up anything, but if you swapped them into a grounded input the signal would disappear.

[Maurice Leakey]

Pins 2 and 3 are confirmed by Ethan's enclosure of part of the instructions for line output.