Summary

Experiment with low cost sequencing, arpeggios and random noise sampling with your Eurorack modular at an unbeatable price!

If you would like a neat little sample/hold and want to give your SMD soldering a refresher or you are new to surface mount soldering, this is the right project for you.

It has a small number of surface mount parts including two SOIC packages. So if you are new to surface mount, it is a great way to get started.

IMPORTANT NOTE

This is a PCB and Panel set only. A set of 1 high quality PCB and 1 front panel ONLY are included. You will need to purchase your own components and build your own module. Comprehensive build instructions and BOMs are provided to help you source the components needed and we even provide links to shopping carts to simplify sourcing those components. Some product photos above show COMPLETED build.

Features

This is a compact and simple Sample and Hold module for your Eurorack modular synth.

A tiny, low cost module, leaving you with funds and space for more comprehensive modules.

• Adjustable input level to tune the range and prevent clipping
• Switched external clock jack
• Clock out
• Fits in a 4HP wide rack space.

Documentation

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

Getting started

If you would like some practice, we recommend This SMD Beginner's kit and Tutorial or A More Advanced Kit and Tutorial to learn the techniques and sharpen your skills.

Making sounds

• connect a ramp wave from an LFO to the input, and feed the output to a VCO CV input. Patch the VCO to a VCA and the clock out from the S&H to an envelope generator controlling the VCA. You'll hear a distinct note played at each sample.
• patch a low frequency (.2 Hz) sawtooth into the S&H input, adjust the sample rate to about 2 Hz. The output will be a staircase wave. Using the staircase output to drive a VCO, you will hear a rising sequence of 10 notes. A triangle wave input will produce an up and down staircase.

Compatibility

The internal clock has a capacitor on it that decouples the clock signal to the sample trigger. In other words it has been specially designed as a sample and hold clock. Effectively the capacitor AC couples the clock so that the DC signal of the noise (or other sample source) is eliminated. Without the capacitor the sample circuit would be "open" between clock pulses.

Any external clock source needs to be AC coupled to operate the SH the same as the internal clock.

You can use various "Gate Conditioner" modules to modify clock signals but the easiest way is to use a 0.001uF (1000pF) capacitor between the external clock source and the clock input to the SH.

You can do this with a custom patch cord or if you would like to add a mod to the board please contact us for guidance.