Wiring diagrams and pictures

Please click this link to download wiring diagrams and pictures

new revised manual with many corrections and hints

Please follow this link : http://freepdfhosting.com/22c6e940f1.pdf If you have any suggestions, pleas let me know Greetings

Component layout

I have included a component layout for easier soldering.
Please follow this link.

The schematic of the first part

Follow this link to upload the first part ( the split manual section )

Just a thought ...

Would there be any demand for a fully mounted and tested upgrade box ?
If so, I can always start to assemble.
Please let me know.

The mystery relay board ...

The relay board has been designed to be mounted near the Modulator boards.
It has 2 relays of 12V connected in series ( Re 8 and Re 9 ).
There is also a solder place for a resistor ( RR )in case you would like to use relays with a lower voltage.
Normally, when using the 12V relays, this Resistor can be replaced by a jumper wire.

The modification on the PCB

It seems that I've not posted a picture of the small modification on the PCB as stated in the manual part 1.
So here it is !
The red lines are the cuts on the copper tracks.
The yellow lines are tiny wires to be placed.

A new BOM

There wwere a few errors in the BOM.
So I've uploaded a new version :
Click on the previous posted link or click here

A revised manual

I have made a few corrections in the manual part 1.
You can download the corrected manual in the previous posted link or you can click here

Bill of materials

Please follow this link to see the list of components.
Cheers

Extension box manual part 2

Please follow this link

Pictures of the wiring diagrams

Here are the wiring diagrams as used in the manual

The manual Part 1

Follow this link to upload the first part of the manual

A few example video's ...

I've posted a few example video's of what you can expect of the extension box.
Here is the first one
This is the other one

Right now I'm working at the manual with detailed pictures and wiring diagrams

Email contact

I have now added an email adress under "profile"
Greetings

The parts overview

This is a picture of the parts needed. Still missing in the picture is an extra relay PCB and knobs for the potmeters. As you can see, wires have been prepared in the right length and tinned.

A block diagram

About the printed circuit board

The PCB has following purpose :
- Switching by relays of the signal path
- Switching the orbitone to a string ensemble
- Mixing the 3 signals of the string ensemble to a stereo output
- Small stone phaser circuit
- Control circuit of the sustain attack
- Muting circuit
- Mixing the sustains and the 4' and 8' strings of the lower manual

How does it work ?

A little bit of explanation :

By activating the switch these things happen :
- The orbitone ensemble will turn into a string ensemble.
- The routing of the strings and sustains of the lower manual will go through this new string ensemble.
- The output of this string ensemble will go through a build-in small stone phaser.
- The output of this phaser will be mixed with the rest of the organ sounds.
- Stereo output of this string ensemble only is available.

The sustain attack will be made by controlling the sustain bias.

The small stone phaser is the original circuit with the original parts. It has a rate control and a depth switch.

The circuit board inside the E310 ...