Eml synthesizers

Ah, Doug, you're getting old :)
 
The 401 has a +/- voltage out jack between the Vext input and the trigger
out on the lower left of the panel. 
 
It requires a TRS plug to bring otu the voltages and ground.
 
As far as the Envelope follower goes. I have the EF-1 circuit module and
documentation. It requires +/-15V. It looks like the one on eBay is the
circuit module mounted into a Radio Shack hobby box that's been painted up
really well. I used the same box for the Syntar power supply.
 
If EML made those, it makes sense that they made them so that you could
string boxes of modules together by daisy-chaining the power.
 
The trim pot on the board is for setting the gate trigger hysteresis. The
guy probably didn't need to replace it.
 
George Mattson.


  _____  

From: emlsynth@yahoogroups.com [mailto:emlsynth@yahoogroups.com] On Behalf
Of Doug
Sent: Thursday, August 18, 2011 2:38 PM
To: emlsynth@yahoogroups.com
Subject: [emlsynth] Re: How do you use the EML Envelope Follower? (lil
yellow box)


  

To my best recalections, the none of the EML synths had any sort of DC power
output jacks. Would have been nice though.

I have to assume you are referring to the board level experimenter products
that EML produced. I have a couple of the sample & Holds that I use in my
SteamSynth, but beyond that, I don't know much.

I'll make a strong assumption however... You'll need to decide how you want
to power your (rare) Envelope Follower board. I would NOT modify your EML
synth just to bring out the required voltages.

I would strongly suggest a small external power supply, then simply connect
the grounds of the two units.

--- In emlsynth@yahoogroups.com <mailto:emlsynth%40yahoogroups.com> ,
"ukrainiannproud" <prosperp@...> wrote:
>
> I first saw one of these on the bay about a month ago (still there, crazy
expensive) but have an opportunity to buy one locally for much less. 
> 
> I want to buy it to augment my 100 and most of the controls and jacks
seems self-explanatory except for the power ones. There's an in and an out
for power and the one listed and the one locally don't come with a power
supply as far as the owners know. 
> 
> Does the 100/101/200 power it just by connecting it? Why is there an in
and an out? Can this be used with a 100 or not? Are there only certain
synths that it's useful with?
>