DIY - PCB AND PANEL ONLY

This is a simple clock module to drive your synth sequencers and switches. All CMOS based, no microprocessor so it is easy to build and test. It is one of our easiest through hole builds.

If you are currently using a VCO or LFO as a clock generator, you can use this module to free that up.

• Push start/stop switch
• Rate adjustable over two ranges
• Three clock outputs to save your multiples
• Highly customizable - easily change ranges and output levels
• 4HP Eurorack with our panel

Build it yourself - This is a set of high-quality PCB and front panel ONLY for users who want to purchase their own components and build their own module. Some product photos above show COMPLETED build.

Comprehensive manuals, parts lists and component shopping carts are provided in the documentation link for building, testing and using the module.

Switch options for latching switch:

• eSwitch LC1258EENP
• C&K PN12SHNA03QE
• ALPS SPPJ310500

Switch options for the momentary switch:

• eSwitch LC1258OANP or LC1258OASP
• C&K PN11SHSA03QE or PN11SHNA03QE
• ALPS SPPJ311500

But use the eSwitch caps only for all these items: Mouser 612-1R-xx

With the capacitor values suggested, the approximate clock frequencies are:

• HI: 1.35 Hz to 68 Hz
• LO: 0.1 Hz to 6 Hz

R14, R15 and/or trimmer R16 set the clock output pulse voltage level. The following options are suggested:

• 10V pulse: R14 = 1.2K, R15 = 11k, R16 OMITTED
• 5V pulse: R14 = 1.8K, R15 = 1.5k, R16 OMITTED
• VARIABLE PULSE LEVEL: R14 = 1.5k, R15 OMITTED, R16 = 50k Trimmer

Thank you Jeff Wurz for the time lapse build video.