In addition to the completed stripboard assembly, the following parts will be needed to complete the project...
• A Hammond 1455 series aluminium enclosure - part no:
1455C802BK
• 3 x 1/4" (6.35mm) standard stereo (TRS) jack sockets. The type listed
- HERE - works well
• 2 x 2.1mm DC 'power plug' chassis socket. ( See - HERE - for a typical example )
• 1 meter of equipment wire (10/0.1mm (recommended) or 7/0.2mm
You will also need the following leads for system connections:
• 1 x 50cm stereo (TRS) jack plug to jack plug lead (Interface to Vent Remote jack)
• 1 x 1m (TS) jack plug to jack plug lead (Interface to keyboard Sustain jack)
• 1 x 50cm 2.1mm to 2.1mm 'power plug' lead (To 12V DC 'wall wart' PSU)
Remove the end plates from the Hammond 1455 enclosure and drill holes in each to suit the jack and power plug sockets. Drilling templates for each end plate are shown below......
(Just click either image to download a PDF version)
Notice that the input end plate has a hole for the input (footswitch) jack socket ... and for 2 x DC 2.1mm power supply sockets.
This allows for 2 x DC sockets to be fitted in parallel. The interface draws so little power, the 'wall wart' power supply is quite capable of supplying additional units, if required.
In that case, one DC socket serves as a DC input, and the second as a DC output to other units.
(I use this facility to enable me to use the actual Vent 2 PSU to power the interface, although that action - strictly speaking - breaks the design concept of 100% DC isolation for all inputs and outputs).
You can make your own decision on whether to use that option?...
Fit the input jack socket to the input endplate (either a mono or stereo jack will do) and mount the 2 DC sockets into their assigned holes. (The DC socket connections can be wired in parallel using 2 short lengths of 25 gauge - or similar - TCW (Tinned Copper Wire)).
Using short lengths (c.60mm) of 10/0.1 or 7/0.2 equipment wire, connect the TIP and SLEEVE connections of the input jack to the appropriate terminations on the stripboard (see the stripboard layout drawings for exact details).
Wire the output jacks to the other end of the stripboard, using similar equipment wire.
Remember that the Vent output jack must be stereo, and the 2 terminations connected to the RING and sleeve and not the tip and sleeve as with the other two jack sockets.
Do not mount the output jacks onto the output endplate at this stage.
Check that all terminations to the stripboard - both component and wire connections - have had their leads cut as close as possible to the stipboard copper side.
Take the completed sub-assembly and offer the output jacks - arranged back to back horizontally - into the enclosure sleeve. The image below shows the arrangement (click on the image to view a larger version)...
Slide the stripboard into the lowest slot in the enclosure extrusion (this is why short 'clipped' stripboard termination wires are so important) and use the stripboard to guide the output jacks to the far end.
Once the stripboard is in postion, the input endplate may be screwed into place.
The stripboard itself will force the output jacks into approximately their correct locations (the jacks will be a snug fit in the enclosure, and will not be able to 'spin round' at all). Offer the output endplate over the output jack screw threads, and fit the nuts. Finally screw the output end plate into position.
This will complete the assembly.
Remember to besure to identify which output jack is for the Vent and which for the sustain footswitch. They are not interchangeable!
The final system, once connected should look something like this...(click on the image for a larger version).
Providing all the details have been followed - including the correct links fitted! - the input footswitch should change the Vent speed between fast and slow everytime the switch is pressed
Simultaneously, the orignal footswitch sustain function is retained - whenever the footswitch is pressed.