Can I get schematics/PCB artwork for the modules?

Schematics are not provided for our Panther kits. These kits are made available simply as a lower cost alternative to a ready-built module and are not intended for general development or experimentation purposes for which schematics would be needed.
CGS boards are designed with the developer/experimenter in mind and so schematics are supplied in our WebTek section.Some of tehse schematics may not show all the external connections to the circuit so it is up to the builder to research in to these. Some of these designs includie wiring examples and in most cases they relate to the modules use in a Best Of CGS system.
PCB artwork is not available for any of our products.

Are your projects hard to make?

This one is tricky to answer. It all depends on your ability.


We now classify our kits as CCK (Competent Constructor Kits) not DIY and we would list the following as basic requirements for anyone attempting build any of our kits:

  • Be able to read a circuit diagram
  • Be able to read resistor colour codes
  • Be able to determine and/or identify other components such as transistors, diodes and semiconductors
  • Be aware of component polarity
  • Be able to read a Bill Of Materials and know how to apply it when building a kit
  • Be able to solder reasonably well
  • Have the patience to read through all the user documentation
  • Now how to properly use tools (see image above!)
  • Be able to use a multimeter and, ideally, an oscilloscope and have access to these tools. Some of these tools are needed for calibrating the completed build. Most of them are needed for simple fault analysis.

If you can't tick ALL of these boxes then we would suggest that these kits are not suitable for you.
If you want to get started, perhaps, a good way is to start on something simple like a small hobby kit from your local electronics store. Have a dabble, build up your confidence and basic skills then go for it.

My project doesn't work, what then?

Join one of the many forums such as Muffwiggler.com.
Then after checking that your question hasn't been answered you can post to the list for advice.
If you still can't get the completed and undamaged module going, you can send it back to ELBY Designs to fix.
You will have to pay for postage both ways, any parts required and our labour time at AUD$25 per hour.
You must first pre-arrange with us in regards the return as we have limited time and will need to ensure that we can provide this service to you in a mutually acceptible time period.

Are all your boards lead-free?

All boards are RoHS compliant, which means they do not contain lead.
All boards can be soldered with either lead free solder or lead based solder.

What sort of solder should I use?

All of our boards can be soldered with either lead free or old fashioned leaded solder.
We still prefer to use Pb/Sn solder for our own in-house projects because it is easier to work with.
If using active-resin based solders be sure to clean the boards afterwards with a proprietary PCB cleaner to remove all traces of resin. You do NOT need to clean 'no-wash' or 'no clean' solders, some may leave a white deposit which is harmless.

What modules do I need to buy to make a modular synthesiser?

Everyone will have their own preferences so its difficult to recommend specific modules for a complete system. The various synth forums are a good place to find 'getting you started' advice.

Can I get just PCBs and/or Front Panel?

We do not normally supply Front Panels for the CGS boards. The CGS forum is a good starting point to see if there are any group buys or surplus sales of other users panel designs. We can create a panel design for you and would use the Front Panel Express design tool and their associated service. Contact us by email if you wish to get a design made.
Panther Front Panels are available by email request.
Panther PCB(s) are available by email request. These are the full set of PCB's used in the project and may include some of our Panther Support boards. If you are building the project to fit a different housing and/or front panel design you may find some of these boards superfluous.

How deep are your Panther EuroRack modules?

When quoted, the module depth is the distance from the inside face of the front panel to the most extreme outside edge of the module. This depth includes an allowance for a fitted IDC Power Cable.
Most of our modules now use a plug-in main board that sits parallel to the front panel and for these modules the standard depth is 60mm (standard module) but a few modules still need to use a perpendicular configuration and are inevitably (but not always) a little deeper (deeper module).
Module widths are in units of HP where 1HP = 5.08mm (0.2"). We do not restrict our panel widths to multiples of 2HP. This allows us to provide an optimum panel layout without compromising panel space or cramming panel components together.

General Module Information

The information given relates specifically to our Panther famiy of modules but can, in general, be supplied to other products offered.

Products are designed run from a regulated dual-rail power supply in the range +/-12VDC to +/-15VDC without requiring modification. Protection circuitry is not included and so it is the responsibility of the user to ensure the correct termination of the product to its power supply.

Products are cooled only by natural convection so it is important to allow adequate space around the product to ensure unobstructed air flow.

Standard precautions should be taken when installing products as for all electronic instruments.Do not place ona source of direct heat, in direct sunlight, or near other instruments that may result in intereference with either's operation.

Products are usually equipped with brushed aluminium panels and should be treated with according respect. These panels can be cleaned with a soft, barely, damp cloth.

The 0V power supply is connected to the front panel and must be grounded for safety. The ground reference should be provided via a chassis terminal to a suitable mains-earth point. The user should note that introducing multiple grounding points may lead to ground-loops and it is the responsibility of the user to ensure that those problems are treated in a competent and legally correct manner.

Products use good quality 3.5mm (1/8") and 6.35mm (1/4") connectors. Users are advised to use plugs that have meet the basic specification detailed in the attached drawings. Cheaper plugs can have shorter tips, shorter body lengths or even differently shaped tips and may not may proper conatct with the socket points or not properly active the break contacts (which are used in some applications to provide normalised connections).

We use polarised power connectors for most of our products. It is the responsibility of the user to ensure that connecting cables are fully compliant with this (i.e. they are mechanically and electrically correct) and that mating connections on 3rd-party products are compatible.

When installing a product in to its case, make sure all internal cables are properly folded so as not to get pinched or come in to contact with hot surfaces.

Statutory Information

The information given relates specifically to our Panther famiy of modules but can, in general, be supplied to other products offered.

Most of our products are analogue audio frequency devices and contain no digital circuitr. However this does not guarantee that radio interference will not occur when connected to devices that be emitting radio interference. If interference is experienced after installation of this equipment you should check faulty screening in connecting cables.

Most of our products are not subject to the European EMC Directive 89/336/EEC.

All of our products fall under the 'low-voltage