Part Sourcing
For general information regarding where to get parts and suggested part numbers for Oakley
projects please see my Parts Guide at the project webpage or www.oakleysound.com/parts.pdf.
The front panel is obtained either from Schaeffer in Germany, or Front Panel Express (FPE) in the
US. The database for the panel is provided on the project webpage and this file can be opened,
edited and ordered using the Frontplatten Designer program available free from Schaeffer or FPE.
The cost of the 50HP wide panel was around 55Euros at the time of writing. The panel is 2.5mm
thick and has a natural silvery finish. The black text is printed, although it is possible to edit the
database to have the text engraved.
The pots are Alpha 9mm vertical pots as sold by Thonk and others. I use Thonk's standard ones
with 6.35mm (0.25”) round shafts. Other shaft types are available, like splined or D-type, and you
should purchase those that are compatible with your choice of control knob. I prefer the round
shafts as they require control knobs that have a fixing screw. Although these knobs take more time
to place and secure, the height at which the knob sits on the pot shaft is under your control. Push fit
knobs can sometimes not sit at the right height which is unsightly if they are too high, or graunch
against the pot's securing nut and washer if they are too low.
For control knobs I use Davies 1900H clones available from Thonk and others.
The two C&K D6R tactile switches are available from Thonk as their 'C&K Tactile switch'. You
can get them in different colours but I prefer black.
The toggle switches are a standard sub-miniature type that are designed to fit directly into a PCB.
The three way on-off-off ones are available from Thonk as their DW2 sub-miniature switch. The
two on-on switch is available from Thonk as their DW1 sub-miniature switch. Both the DW1 and
DW2 switches are made by Dailywell and offer good performance for their price.
All of the 3.5mm sockets are the same type and are available from Thonk known either by their
Thonkiconn moniker or as part number PJ398SM.
The fixed 2.54mm (0.1”) interconnects are in two parts, the male header, and the female socket or
receptacle. I use both ten way and four way single in line (SIL) connectors in the Sequencer. The
ones I use are made by Multicomp, although more expensive types are available which may offer
increased longevity. These are the Multicomp part numbers for the parts I used:
10 way socket
2212S-10SG-85
10 way header
2211S-10G
4 way socket
2212S-04SG-85
4 way header
2211S-04G
You can carefully cut the ten way header to give you two four way headers. It is not possible,
however, to cut down the ten way socket to smaller sizes.
The 3mm light emitting diodes (LED) are green in my prototype. However, you can chose any
colour you wish so long as the LED's forward voltage (Vf) does not exceed 2.5V. Red, yellow, and
orange should work fine. I chose to use flat topped 'cylindrical' LEDs so that the flat top of the LED
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